Yea, I'm wondering if that's an oversight or intended. If it did not delay the others, it could be quite useful but in it's current state it's just bad.Not useful
You get random GP's, and yes they delay the others - they are not "free."
Alternatively, you could go back to Civ 4's GP pool pollution problem and endlessly get your next GE's or bulbs pushed back by admirals and rock stars.