Yeah, how dare they give us a bunch of awesome new songs to play? Nothing says "played out" like continuing to provide quality content.
Firsty, this Lego RB isn't even out yet, so it can't be considered a misstep at all. Secondly, how in the world can anyone say GH: Aerosmith was a misstep? Aerosmith is one of the most respected, well-loved bands in rock history. Now, obviously if you're not a fan of a particular band you're not going to like their dedicated GH/RB game, but there are simply too many Aerosmith fans out there to say GH: Aerosmith was a misstep.