Solid point, but how are you going to implement that when people already completey ignore skill shot type items such as the Red Photon Thingy That Gives -Resist (I might have gotten that item name wrong) SS players are all about saying "To Hell with mechanics, Imma just slam my head against this wall until it breaks", so without making something that integrates the requirement for active play into mainstream group content, we'll never move away from MCing as a community.

The huge amount of Tracking weapons get contribute quite a bit. Full Tracking weapons like KMW are so effective. Snipers and ShMs also get silly amounts of Tracking.