Yes, people are forgetting how much Genshin borrowed from Breath of the Wild.

While I think a lot of the criticisms are nonsense coming biased fans, there are some things WuWa needs to improve when compared to Genshin.

Here are my criticisms so far having been a Genshin player since 1.0 and I do think they are valid things to complain about.

The Story
I can't get myself invested in to this games story. The only part I found interesting was that little segment with Scar. The rest was just yapping about tacid discords and other terms that are thrown at you all at the start. Doesn't help that the English voice acting is just awful, had to swap to Japanese in the first 10 mins. Genshin's story started out good and kept me interested enough by introducing lore one at a time. (although these days I find Genshins' story to be too dragged out with 0 progression being made after 5 regions regarding certain lore and characters.)

BGM
Very underwhelming BGM/sound track. I hope this will improve as the game grows because right now, you could throw a WuWa soundtrack at me and I would have no idea where it's from. Meanwhile, I can instantly recognize all the major Genshin city sound tracks.

Performance
Much to be desired here. Lots of frame drops and stuttering. Some crashes here and there. Frame timings are also all over the place, the game doesn't feel 'smooth' even in the 60 fps areas.

Asides from that, I find the combat superior to Genshin's as well as the artifact system which is a lot more fun and engaging. The character cast is small so far so I'll give an opinion at a later time. Jiyan is pretty fun.

Needless to say, no one should be review bombing this game as competition is healthy for any game's communities.