What makes you think that this isnt already the case?
Numbers always give you a huge advantage in all areas of EVE, PvE and PvP.
2 cheap T1 BS can clear a site faster than 1 expensive pirate BS.
For the cost of 1 T2 cruiser you can fit like 5 T1 cruisers.
NPC fleets hunting down solo players … Why do we need that? EVE was always advertised as a sandbox, the game with the greatest freedom. Forcing players into certain gameplay styles does not fit into that image.