I think the issue might be resolved with dropping PS2.
I've been in the .dats a few times and saw the list was limited with working space in between (dats are ordered 1~10,000 or something, and back at 75 after salvage came out there was like 5,000 open spaces?) I'm probably way off on numbers but you get the gist of the idea.
I'm just assuming this, as I have no solid proof, but I assume the reason they can't increase the list is because of PS2 limitations.