Gt7 revenue on release was good, thats the only thing that matters.
No one at Sony or PD is wasting a thought on this game anymore.
The patches consist of content that had been created before release and was intended as DLC. Then the bad publicity happened. PD decided to abandon the game, because fixing it would be too costly (fixing a 2022 game for the ps4? Certainly not). So instead they are slicing up that season DLC, call it "patches" and thats it. Zero cost, zero investment. Thats why there are no real improvements on the game, and never will be.