I'll go ahead and say that to some degree, yes this is needed. I've played many a brood war map only to find a huge swatisca in the middle with two naturals - no where near where you start.
though they could go about it a different way.
http://kotaku.com/5605333/blizzard-policing-inappropriate-starcraft-ii-maps-because-they-can
though they could go about it a different way.
Unlike the original StarCraft, Blizzard is reviewing player-made maps for StarCraft II, deleting those they deem inappropriate. When players in the forums ask why, Blizzard responds, "Because we can."
http://kotaku.com/5605333/blizzard-policing-inappropriate-starcraft-ii-maps-because-they-can