I wouldn't honestly care if the ears just disappeared with helmets, if people didn't like it they could just not use the helmets.
Not saying they shouldn't add pockets or holes the ears could go through ( altho if I wore a helmet and had those ears I'd want them protected lol, it's a miracle any Viera seeing combat still has them intact ), but just if they wanted a simple solution.

'' It doesn't make sense '' etc etc, I mean...
Why does my character get a magical breast reduction in so much gear?
It's not like it's '' making sense '' or is consistent anyways.
It's a bit funny too when the same people complain about revealing gear not making sense but then want their ears and tails to be out.
It'd be easier to lop them off than to get a hit in anywhere on the torso, your ears and tail wouldn't be important to protect?
Logic has no real place here imo.

It's the same with tails if I had a tail I'd probably bind it down and tuck it in or something, why would you want to have your tail out if you're wearing armor if people want to talk about logic then that should be the real question.