> is it simply the case that we can't be outwardly critical of AI itself at all anymore
You need only, er, delve into any large HN thread about AI to see that this is very far from the case! especially the more generic threads about opinion pieces and so on.
I think the air on HN is too cynical and curmudgeonly towards new tech right now, and that worries me. Not that healthy skepticism is unwarranted (it's fine of course) but for HN itself to be healthy, there ought to be more of a balance. Cranky comments about "slop"* ought not to be the main staple here—what we want is curious conversation about interesting things—but right now it's not only the main staple, I feel like we're eating it for breakfast, lunch, and dinner.
But I'm not immune from the bias I'm forever pointing out to other people (https://news.ycombinator.com/item?id=43134194), and that's probably why we have opposite perceptions of this!
* (yes it annoys me too, that's not my point here though)