Those people were advocating for stability, not necessarily for P2. The 2->3 was a pretty big screw up, and it definitely had an impact on the language and ecosystem.

Python seems to have overcome that (keyword: seems), thanks to a strong offering in data science, but 2->3 is still a headache. I never really used Python for application development, but rather for utility/scripts and I am still on 2, because I don't need more.

2 is available out of the box on all OSes and at work we also use 2 for building tools.

I have the feeling that Python is still losing people to Golang due to its weak performance and Golang's reputation in that area.

So instead of being arrogant about 2->3, I'd say Python devs should be thankful to data science for saving their butts. :)