This sounds an awful lot like an MMO version of Marvel Ultimate Alliance, which was a fun enough game for a short while, but seriously lacked the depth of gameplay needed to last for a long time.

Button mashing and jumping around makes for fine gameplay, but for an MMO? Are people really going to be happy button mashing for hours a day, for years to come? Doing the exact same thing over and over and over, regardless of what level they may be?

I really want Champions Online to be good, but what I just read is not encouraging to me at all. If I wanted that kind of gameplay I could just whip out MUA again.