SAFe is not "advanced" Agile. It's training wheels Agile for managers and execs who can't give up control and devs who want to be told what to do.
The reality is that in some domains there just aren't many developers who are highly motivated, self directed, and thoroughly understand customer needs. Those people just aren't widely available in the labor market regardless of wages or working conditions. So if management doesn't impose a fairly strict methodology then then the program will collapse.
But leadership has to incentivize not just being a ticket monkey, and needs to mindfully empower people. You can't just flip a switch in a feature factory and say "fly my pretties, be free!"
Why would someone with these qualities work for someone else?