Other mistake: Two Borg are discovered North of the Arctic Circle. One is covered in ice, the other encased in ice. Carbon dating shows the wreckage to be over 100 years old (to tie it in with Star Trek: First Contact). The Borg are inactive and unable to repair themselves until they are "defrosted". The temperature above the Arctic Circle doesn't usually drop below -100°F. The Borg have been shown to work very well in the vacuum of space which is 3-4K (roughly -454°F). If they can survive that, even being frozen in a solid block of ice would not slow them down. The nanites have to be in their "blood" and operate at the cellular level. That cannot be damaged by re-entry and the crash.
Star Trek: Enterprise (2001)
Episode list - season 1
More mistakes in Star Trek: Enterprise
Captain Archer: We should be entering the nebula.
Subcommander T'Pol: The readings could be misleading.
Captain Archer: As Dr. Phlox would say - optimism.
Subcommander T'Pol: Optimism doesn't alter the laws of physics.
Trivia: When Travis is in his old room talking with Nora about Enterprise, look on the bookshelf behind Travis. There's a large white book about Chicago gangs of the 1920's. In the original series episode "A Piece of the Action" it is determined that 100 years ago the ship Horizon accidentally left a book about Chicago gangs which influenced the entire culture to mimic the mobster lifestyle. (00:20:55)
Question: Why was Enterprise cancelled after only four seasons?
Answer: The same reason any show gets canceled, low ratings.
Not all shows get cancelled because of low ratings. Some get cancelled because they're too expensive to make.
Don't know why it had low ratings. IMO it was close to the best of Star Trek franchise.
Answer: While ratings did drop, there was a lot going on to cause the rating drops and cancellation. First, "Enterprise" was on UPN, which was dissolved a year after the show was cancelled. At the time of cancellation, it was UPN's highest rated drama. Because they were on at night, they were often preempted by local UPN broadcast of baseball games. And it wasn't even aired in every market. They also lost a major corporate backer early and it was difficult for them to over come that loss. Plus, for season 4, they switched to a Friday night line up, so they were competing against Fox shows, like "The Simpsons" whereas on Wednesdays they didn't have much competition.
Bishop73