I think all they needed to do was either increase the number of dungeons that dropped the tomestones for more variety or increase the number of tomestones the current dungeons drop by at least half. If Copperbell drops one tomestone make it 2 for a synced party and 1 for an unsynced run. Same with the others. Praetorium and Castrum should offer at least 5-6 per run to entice more people to slog through them. 2-3 for unsyncing them.