This video kind of misses the mark on delivering the points of the title, but these are the simplest boiled down points of the community gripes:

• ASUS is having quality control issues, or deliberately skimping to pad profits
• They are rebranding lesser quality components with the higher quality ROG brand, and pricing it as such
• They are unilaterally voiding warranties when users try to RMA or return said hardware

Gigabyte (remember them?) did this same slow slide of enshittification about 10 years ago. The issue pretty much boils down to a company producing too many different types of things, instead of staying good at the things they do well, and the community has noticed and is calling for boycotts. This will no doubt put them on the defensive for years to come, and affect their overall standing in the larger community until they correct course.