Isn't HoN a carbon copy of DoTA? DoTA heroes are not designed to be useful all game; thus why there are different roles in game. Why did S2 decide to change that philosophy? When S2's philosophy changes and introduce a carry hero that can nuke out a lane and snowball grealty, while leaving the old heroes the same, of course they will stand out. Sure, it might not be "overpowered" but it is nevertheless and advantage over old heroes pool. S2's goal was to abandon roles completely, changing MOBA games into BLC style of game? Yet you guys release heroes like Monarch and Rhapsody, and specifically address the hero as "support" in hero spotlight. Funny thing is, both heroes do their roles 100x better than DoTA supports.
Despite those changes, HoN's metagame is still the same. Previously, as long as a team shut downs carry early game, the game is pretty much a win - kill carry win game. Now you have carry that farms with ease, and requires constant ganking thats why nymphora is picked in competitive games (players adapted to the changes). Furion in DOTA is almost always picked for the same reason. Like I have mentioned before, most HoN's strategy and synergy are inspired by DoTA.
Oh, and when Nymphora first came out, she was OP as fuck as well. A support hero that can farm, tp gank, and carry? At least she is nerfed so that she lost her carry potential.