Euler identity looks very bizarre if you don’t understand the proof. Why should exponentiation, the imaginary unit and pi be related?
In mathematics there’s absolutely no place for judging the bizarreness of statements, either they are right or wrong, and of course such a judgement cannot be made by someone who admittedly doesn’t have the necessary background.
As I already said, often in the Academia saying that a result is bizarre is a not-so-subtle way of implying something is wrong by appealing to authority.