I don't overmeld DoW/M gear much at all, due to me mostly being a crafter/gatherer so I don't have much to add there. But as a crafter/gatherer I can say that no one who is even remotely serious should be paying Gil for materia, and the assumption that you must is just false. The stuff is thrown at us from every direction but mostly from just doing what we do. Spiritbonding and Scrips my loves, that is the way. I haven't spent a single Gil on overmelds since HW I wanna say, nor have I ever sold any. Short term gains and all that. Regardless, I doubt we'll see any changes to the system, imo it is "working as intended". We may not like it but RNG is a big part of the necessary roadblocks that the grind consists of. It's easy and cheap to implement and effective, and also not going anywhere.