Scrum fixed that by being as bad as it was precisely defined.
I can get what the originators of agile were getting at but they explained themselves super badly.
I think a lot of ppl forget that.
One of the nice things about scrum is that it has an official source who defines it and you can look at it to see what it is and what it is not intended to be.
The retrospective is where you can tweak the process, but you can honestly change things anywhere. Bad managers will resist change at any cost and will use Scrum as an excuse to resisting change, but that's true for any methodology.
The problem is it doesn't work when there's micromanagement, it doesn't work when there are waterfall-ish parts (eg: PMs not splitting tickets, QAs hogging releases). Scrum also doesn't work when the development team isn't empowered, or has no domain experts. But most methodologies also don't.