I just don't follow that logic...They count on selling on playstation regardless. Great idea, make sure that there are zero consequences.
They will have consequences on the other platform seeing they put effort to release games there without getting the expected results.
While on PlayStation they will continue selling very well and so when will take new decisions which platform they will drop?
Now imagine if because they put their games on another platform and it sells bad there... and at the same time they see that the PlayStation version sold bad too... what do you think it will happen? They will kill the franchise or not develop a new game for it because due they bad decisions they took a big hit financially... it can even broke smaller studios with that logic.
That is why I don't support it.
PlayStation should always sell the most across all platforms... that is how I know PlayStation will be always health no matter what dumb decision publishers do.