Continuity mistake: When the Rangers are rollerblading, it shows Billy, Tommy, and Kimberly jumping. When it shows them landing, they land Tommy, Kimberly, then Billy. (00:06:30)
Continuity mistake: When roller blading, Aiesha jumps and lands and bent over. Camera cuts and now she is stood upright. (00:06:40)
Continuity mistake: At the end of the first scene (skydiving) Bulk and Skull land in a construction site. A worker goes over to them and starts talking. At this time the guys still have their parachutes on. It then cuts to the worker and back to them and not only are the parachutes off, they are nowhere to be seen. (00:07:10)
Continuity mistake: When the crane lifts the steel slab up there is a blue tape wrapped around one of the green strands lifting the slab. Camera cuts and the blue tape disappears. (00:08:10)
Continuity mistake: When the Rangers teleport to the command centre for the first time all their roller blade gear has vanished. (00:09:13)
Continuity mistake: When Ivan enters the command centre we see him ooze through the door. However when we next see the door, the ooze that is left on the door is in places where there was no ooze before. Most noticeable is the gold surround on the left hand side of the screen. (00:20:45)
Continuity mistake: Zordon disappears for two shots (wide shots) when Ivan Ooze is destroying the Command Center. (00:20:50)
Continuity mistake: Just as Tommy asks for some light near the start, the positions the Rangers are in changes instantly. Most noticeable is Yellow Ranger. Her arms go from forming an X to out in front of her. (00:21:40)
Continuity mistake: In the parking lot scene we see Tommy get thrown through what appears to be plasterboard. When he goes through it leaves a big chunk still attached in a triangle shape. Camera cuts and what remains has changed and the triangle piece is not to be seen. (00:23:10)
Continuity mistake: During the fight scene with the Ooze men, Rocky (Red Ranger) and Adam (Black Ranger) jump down to a lower level of the parking structure landing with Rocky at the left of the screen and Adam on the right. Soon after, several Oozemen jump after them, but when they land Rocky and Adam have switched sides. (00:23:50)
Continuity mistake: After the Black and Red Ranger jump down off the platform during their fight with the ooze men, it shows two ooze men jumping after them, but when they land, there are three ooze men. (00:23:55)
Continuity mistake: When Tommy jumps off the building and missile kicks the ooze man repeatedly, he jumps completely vertically, no forward motion at all. Camera does an instant cut and now he is almost horizontal and flying down to kick the ooze man. (00:24:50)
Continuity mistake: When Tommy says to the ooze men about them meeting Saba, the Rangers' positions all change instantly. (00:26:00)
Continuity mistake: When Ivan starts the ooze pumping at the toxic chemicals plant, when the shot changes, the ooze is clearly water. (00:36:20)
Continuity mistake: When fighting the Tangu warriors, we see Kim get lifted away. Adam is on his own on the ground. Camera cuts to show a warrior is right next to him. (00:37:15)
Continuity mistake: Dulcea starts spinning the sticks to drive away the Tangu warriors. First off she is spinning the sticks in her hands. Camera changes and now she is holding a handle to spin them. (00:38:00)
Continuity mistake: When the Rangers are first talking to Dulcea, the front view shows her standing up straight, but the back view shows her knees bent. (00:39:20)
Continuity mistake: When Ivan is showing off his ooze to the kids, we see a shot of the kids from the back and there is a girl with a cap covered in numbers. Behind her slightly is Fred in a white shirt and black cap that is on backwards. When we see the kids from Ivan's point of view, the kids have moved. Fred isn't by the girl anymore but is at the back in the centre of the crowd. (00:40:50)
Continuity mistake: When Fred's father pulls into his driveway, you can see the raised part of the dashboard where the steering wheel, odometers and such sit, on the lower right side of the windshield. Then when he gets out of the car, he climbs out of the left side and you can see there's no steering wheel there. (00:43:00)
Continuity mistake: When Fred's father arrives home, the street is empty. But after he is zombified not even one minute later, the street is filled with people. (00:43:45)
Answer: There's never a "point" to including a weakspot, by definition they are a flaw in the design that is either unforeseen or unavoidable. Maybe they could not find a way round it when building the robot, or any solutions simply created other weakspots.