I think the reason that the Legends games weren't as popular with the Mega Man community is because it had very few connections or allusions to the original or X Mega Man series.
I mean, the only regular character to share a name with one of those two series besides Mega Man is Roll, IIRC.
Battle Network, on the other hand, has shown alternate versions of pretty much EVERYONE from Classic...from what I've read. There's Megaman EXE, Roll EXE, Protoman EXE, Gutsman EXE...hell, one of the games' villains from what I read is a BASS EXE!