The Grand Prix is fine imo. If for some reason I wasn’t allowed to play the Open I would choose the Grand Prix instead. But it’s mere existence is questionable- rooted in people not wanting to play the Open Sicilian. People are naturally afraid of theory.
people are afraid to get to this position because black studied the opening
Ask a GothamChess fan what they think of this position as white and they’ll say it’s great. Say it’s from the Open Sicilian and they’ll change their answer to “Oh, the Open Sicilian? Yeah I think black blundered tbh the Closed Sicilian’s better”
but what if black delays Nc6 untill the bishop has moved? you will have to put it on g2 or c4
and black still gets his easy d5 break and Nd4 and b5
Yep, good point. I feel as though even if Nc6 is delayed (which seems rare from my experience), white still has good attacking chances on the kingside, even if the position is relatively equal.