No, i'ts not. It's stupid to you for reasons I don't know. Rabbit ears are soft and flexible; you can easily pass a hood over them. I don't see the problem here unless you believe they are immobile and have bones. 'AH BUT IT'S VERY DIFFICULT' - this has never been a problem for miqo'tes (except now, since the company wants to save on even the smallest details).
I don't know why you're so fixated on the issue of realism in a game where the company doesn't care about the lore it imposes, so I'm going to send you real images of rabbits wearing hats.
https://i.pinimg.com/736x/41/25/aa/4...6dcc7a2b05.jpg
https://i.pinimg.com/236x/27/22/f7/2...d87108cded.jpg
Edited to add the anatomy of a rabbit, just for arguments about being realistic. See? No bones.
https://lh4.googleusercontent.com/pr...IuRx7klhhb7p5M
