While I do think that it is a blatant rip-off of SSB, I don't really care. These things tend to iron themselves out. If it was a really shitty rip-off of a SSB clone, then it'll go over very poorly, sell poorly, and they'll probably get their asses sued off. If it turned out to be a great, well-crafted innovative game that builds upon SSB and surpasses it in quality and mechanics, then it will sell a lot, and frankly, I don't see a problem with that. Why wouldn't you wan't an excellent game on the market. Then they'll probably get sued anyways. But seriously, if it turns out to be a legitimately great game, then it's not just a cheesy clone anymore, it's become a great game in its own right. And really, SSB has been sitting on a goldmine of replay value. People played melee excitedly during the 7 year gap in between then and brawl, and brawl, in my personal experience, after playing it on a regular basis for the past 4 years, doesn't seem to show any signs of becoming boring. Why no one has taken advantage of this earlier, well, my captcha "beats me", says it all.
Edit: Also I felt compelled to argue in this manner after seeing the gift from the gods that is the WiiU pro controller. I can't in my right mind argue that PS:BR is wrong and horrible, and then defend the pro controller. They are both, in essence, the same thing; A mechanism used to draw major attention and sales.