This is first of all an agenda article. With that said, it's effective because it's a half-truth.
The market will self correct. The problem is that industry players don't like this self-correction process because self-correction involves failure. Fear of Failure dictates risk taking, fear of failure failure dictates budget management and scope management - the fear of failure dictates common sense decision making. All the big publishers and some mid-size devs are head ramming themselves into GAAS thinking that if they strike gold (and a hit) they'll somehow have a stable revenue supply and not have to reinvent the wheel every 3-5 years with a new title (in other words - stagnation, less risk taking, less innovation). Problem is, the more devs try to hitch on the GAAS bandwagon the more GAAS failures - again, a market self correction due to known fatigue or saturation in consumer speak. The graveyard of studios trying to hitch themselves to the FPS wagon during the PS3/X360 era is long. Same behavior.... every shooter had to be a successful shooter - till it wasn't. What happens when your GAAS loses out interest after 6-7 years, you have 2000 employees running it, and your next project fails to recapture the magic? Well, massive layoffs on a scale even AAA studios of today with traditional titles fail to reach - pick your poison.
But nobody wants to have a real conversation about this. Much easier to doom/gloom/misdirect and not talk correctly about the core problem. The core problem is that there is no such thing as assured/infinite success. By just participating in this industry you're not enshrined with a right to success or continued success ad-infinitum. Normal everyday people deal with this everyday in their jobs. The framing for this simple matter in the gaming industry is totally distorted cause certain corps use this distorted understating of market fundamentals to push policy agendas (say to excuse a shift to GAAS for example, or push a subscription, or MTX)... and that includes Sony execs too.
"But but the the argument is about AAA expectations getting out hand..." No the argument is thinking every developer out there has to be a Naughty Dog or a Rockstar Games. That is a lie and false. But if you seek to replicate success sure go ahead and try to be the next Naughty Dog or Rockstar - just don't cry when you fail.