As Macster says, you can ALREADY jump directly from lane to lane. I imagine the suggestion is that there be no 'ship' at all, and no way to 'accidentally' hit blocks, and it'd just play like every other rhythm game in existence (but without a mat/guitar/inflatable giraffe).
Why do people always want to make any given game like the 'normal' games in that genre? Any RTS forum is full of people saying 'needs to be more like CoH', any shooter forum is full of people saying 'needs to be more like Counterstrike', etc. It's lame.