Yes, but like I said, the party that has the most to gain is the consumer. Caring about the consumer in such a heavily consumer-focused product is probably a good idea, surely?
I already said I want Sony to do it. It'll suck if they don't and will probably have a BS excuse for why they won't allow it, just like it sucks they don't allow EA Access to be on PS4 and had that BS "doesn't provide value for our customers" line.
But you're looking at it in isolation from consumer benefits rather than the whole picture. You asked why Sony may not do such a thing, I gave you the answer. Businesses are always in a balancing act cost vs benefit.
I mean looking at it from a strictly business perspective, if we go about "caring about consumers" where does it stop? Surely selling the console for $99 right now would also benefit the consumers, but there's no point if you lose a ton of money by doing that. It's a cost vs benefit situation.
If there are less people buying PS4 consoles or ps4 versions of the game, because the active community/online population is now the same on both consoles, rather than the ps4 holding the advantage in that aspect, and the potential lost revenue from that is too much compared to the benefit of doing such a thing in their opinion, they won't do it.