What I meant by that is that because the changes mostly aren't syntax changes, they won't upset most users who are just using big packages that are actively maintained and keeping ahead of the breakage.

But I still find the high level of instability in Python land rather disturbing, and I would be unhappy if the languages I used constantly did these sorts of breaking changes

I'm even more extreme in that I also think the ABI instability is bad. Even though Python gives no guarantee of its stability, it's used by so many people it seems like a bad thing to constantly break and it probably should be stabilized.