I can see the argument. But I still think it's shifting the blame from the developers of this software that people use but which haven't bothered updating in over a decade.

EDIT: For the past, I don't know how many versions of macOS, you'd get the following message when running python2:

"WARNING: Python 2.7 is not recommended. This version is included in macOS for compatibility with legacy software. Future versions of macOS will not include Python 2.7."

True, except that's only been since catalina which is from 2019. While I get that programs can't practically run on a new OS decades later, I don't think we should be okay with such a short lifespan as on macOS.

But it isn't a short lifespan. Python 2 had it's original EOL in 2015. It's been 7 years since the date of the original EOL. Which is to say nothing about how much heads up they had before 2015.

Didn't Apple completely remove Java in 10.8 (Lion) which wasnt a major version number bump either?

I don't use MacOS, but others have mentioned it's been printing deprecation warnings for quite a while now.

In the days when it was OS 10.8, 10.9, etc. those were major versions, updated over a year and a half apart.

Apple may call it “12.3” now but it is still released every few weeks or months, with just as much randomness as 10.8.3 would have been.