While I agree with the general message, strongarm might be too strong of a word. MS and Steam are certainly more user friendly with respect to refunds versus stoppage of sales. They'd rather allow the user the freedom to determine if the game is in good enough condition to play or not. Sony doesn't like giving refunds so would rather stop sales which both reduces their revenue as well as removing the game from people who would still enjoy a game bugs and all.
So, while developers may have to work around that, I wouldn't necessarily call it strong-arming on Sony's part. It's more like Sony just don't want to build the back end infrastructure to handle something like that automatically like MS and Steam have done. And that shouldn't come as a surprise considering how reluctant they are/were to making a backend system that could handle using saves among differing versions of the same game.
Which again is something that developers have to work around that they don't have to do on MS and Valve's system.
I'd more likely associate it with corporate laziness than malice (strongarm).
Regards,
SB