Partially, with the PSN account “requirement” for multiplayer (which worked fine without it even with cross play), they also banned 176 countries from getting the game, accidently (not really) those are the countries where PSN is not available. This Steam store ban is still not lifted to this day, they only reverted the PSN account “requirement”. And before anybody asks, no it was not Steam that did this on their own, it is the game publisher (PlayStation Publishing LLC) that has to restrict game availability.
They have, but the details don’t matter. You can’t force people to do something, then backtrack when there’s people pushing back and then go back to business as if nothing happened. The broken trust is there already - so every game they add their thing to will remind people of Helldivers. There’s a reason this article has Helldivers as its thumbnail.
