It's been a long time coming with Elon Musk, and he has been criticized A LOT on Hacker News.

https://news.ycombinator.com/item?id=27796948 (2021) https://news.ycombinator.com/item?id=33622767 (2022) https://news.ycombinator.com/item?id=11025852 (2016)

I would also argue he is not being singled out, here are some comments posted criticizing Steve Jobs:

https://news.ycombinator.com/item?id=28295688 https://news.ycombinator.com/item?id=5578642

It really shouldn't come as a surprise that notable people related to a company or project are brought up when an article about it appears on HN.