"Good vibes only" seems to be embedded in the culture of web development today. Influential devs' Twitter accounts have strong Instagram vibes: constantly promoting and congratulating each other, never sharing substantive criticisms. Hustle hustle.
People with deep, valid criticisms of popular frameworks like React seem to be ostracized as cranks.
It's all very vapid and depressing.
Alex Russell is a good read on React. His position gives him a broad view of its impacts and has kept him from being sidelined. This Changelog podcast is a decent distillation of his criticisms – it was recorded earlier this year, a few days after his Market For Lemons blog post.
(Sorry for the late reply! I've been a bit swamped lately and away from kbin.)