Other mistake: 'Imposter' is spelt incorrectly on the Role Reveal. Innersloth spelt it 'Impostor'.
Other mistake: It is possible to check the vitals on Polus. This would involve attaching some kind of medical device to allow this. But Imposters are shapeshifting aliens that are not supposed to be there, but their vitals are readable as well. This should not be the case.
Suggested correction: Given that the players have backpacks and we never see the back there could be a vitals reader on the back.
With a recent update, it's now clear that there're no vitals reader on the back.