What is there to be jealous about? Being in the saddle while stopped is uncomfortable. It also doesn't give you much of an advantage when things get moving again, since you still have the problem of clipping back in.
If you just want to accelerate faster from a stop, switch to M324 pedals. Their shape lets you be pretty careless about quickly putting your foot down, and if you land on the platform side, just pedal to speed before clipping in.