I’m not talking about now, in SoD but in general.
If you look at TBC for example, there were just as many GDKPs as pugs for raids or arguably even more GDKP runs. That’s roughly half the potential people willing to group with others missing, from a casual perspective.
Let’s say I’m a raider. I have gold. Would I rather GDKP? Or PUG. Of course I’d rather GDKP. Get rid of GDKP and you’ll be forced to PUG.
Note: I’m NOT saying that GDKP will ever go away. Nor do I want to get into this whole RMT GDKP debate. I’m just saying that neither are good for the game.