I mean, I noticed multiple frame rate issues throughout the experience, but considering how the only open world game I can think of that ran better than this game on hardware this weak was MGSV on PS3, I don't really care. It's pushing the hardware it's on, so it get's a pass. I always say that I don't care about lower frame rates if the game is cutting the frame rate for a gameplay reason, rather than to pursue hyper realistic visuals that the hardware cannot handle.
If BotW ran like this on hardware as strong as the PS4 or XBO, I'd have issues. As that is not the case, I am fine with it. Well, as fine as you can be with anything less than 60fos.