That thread is mostly about Google completely messing up their response to what Microsoft announced yesterday.

I don’t see that unanimous acceptance, there are a lot of interesting discussions about the shortcomings. There are many comparisons between Google results for examples, with also potential solutions to problems you cite like https://news.ycombinator.com/item?id=34709883

It’s not about replacing search overnight, but if it can take even 10% of search volume that would have serious consequences for Google.