Which certification factories (*) do you see out there?
(*) commercial organisations whose purpose has become to sustain the primary income source of certified trainers who would not otherwise sell training classes without the certification. And whose primary purpose has shifted away from knowledge sharing, fulfilling education and learning needs of its professional community and and doing good by it
Koen Vastmans comments on SAFe blending many good concepts & techniques with misrepresentations+omissions of key elements & mindset needed to make things work. He lists several examples.
There you also find comments from authors whose concepts and techniques have been blended and assimilated by SAFe, for example from Jeff Gothelf (on Lean UX), Dave Farley (on Continuous Delivery), Ken Schwaber (on Scrum).