I do get that it felt a bit out of place initially, but BOTW has 4 massive mechanical laser-shooting beasts, along with a whole fleet of spider-crawling laser robots and helicopter laser robots... The motorcycle doesn't feel so out of place in that context. But I'll admit, I haven't played many previous Zelda games.
Also, the bike is only unlocked after all the divine beasts, when the game is already "over" and you're just trying to complete all the shrines and quests. I'm so happy to have it in order to help me get around faster for those things.
But yeah, I can't deny it felt weird at first :)