"If it's a mistake, it should course-correct"

Maybe, or maybe not. The thing is, that "mistake" isn't something that is generally valid. For example, the enshittification of Google Search through the last 15 years seems to be a mistake --- but perhaps not from the money-making point of view of Google Shareholders. Likewise the enshittification of reddit --- we nerdy users see it as a mistake. But for them this intended enshittification probably increased revenue.

It's the money, always the money! PR-speak like "customer satisfaction is our highest goal" is, like most PR-speak, a blatant lie.

And so it can very well be the case that for coders the frontier models get worse, but they get better for other applications --- and that all of this is just driven by "how can we capitalize the most out of it", not satisfaction levels of programmers.