This may be a change compared to thirty years of OS defaults, but it makes total sense to me. People use phones and tablets more than computers these days and on those platforms rich screenshot tools are the norm.
I can't remember the last time I actually wanted a screenshot of all my three screens. I've always used the button in combination with alt or switched to Win+Shift+S for snipping tool.
Assuming Microsoft leaves the quick shortcuts (alt/shift PrtScr) only power users seem to know about in place, I think this will be an improvement for most people.
For automation tools, I hope Microsoft will at least expose a setting for this, though I'd expect them to do it in a registry key if they do it at all. It's not exactly hard to get a screenshot through the Windows API (https://learn.microsoft.com/en-us/uwp/api/windows.graphics.c...) so getting around that without settings shouldn't be too much of a problem once tooling gets up to date either.