Not really.
They're waiving the requirement for this game, the upcoming Ghost of Tsushima still requires a PSN account to play the multiplayer DLC and we don't know what the actually no requirement for PSN on Helldivers 2 is yet. My guess is that while we don't have to sign up, cross play will be disabled, which will of course hurt PSN players more than PC players.
I have not confidence in Sony or any AAA publisher to do the right thing when executives with MBA's and shareholder profits tied to their bonuses are involved but I'll take a win if for this one little battle, the consumers won out.