Interesting tidbit.
First and most abiding idea is that it's a subtrefuge to play on their pride or some such.
An outside possibility is that some recognize Christians as their future rulers. But then, bonafide, authentic Christians are virtually never abducted.
Puzzling.
What do you think/feel about it?
ET's bowing and kneeling to humans may have been a response to being shot at. A comparable human response would be to raise both hands in the air to indicate surrender. Maybe something is lost in translation?