I don't think it's nitpicky. BotW is probably my favourite game ever, and the frame rate drop bothers me, and when my game COMPLETELY FROZE and I had to restart my console that's also quite a bother. Perhaps you haven't shared experienced with us. Saying slight frame drops, I'd imagine that's...
I've had multiple issues killing moblins and I think sometimes lizalfos or other large creatures. Earlier today I wasn't even fighting an enemy just getting to a tower and it made a horrific noise and froze. Turned off my game and back on and it worked fine but damn near had a heart attack.