I, for one, am very happy it's a fabric cape. The sculpted capes for Batman and Superman (original trinity) were a pain in the *** to remove and attach. The also threw off the balance of the statues.
Bat's cape looks amazing and is a non-issue for me. I had no reason to remove it and it sits very securely. Swapping out portraits was never a problem because the heads pulled right off without having to futz with his cape. Superman on the other hand is a complete pain in the rear to change portraits and has a terrible one peg set up on his cape. That really was some lousy engineering on sideshow's part. That all said, I still think the sculpted capes look wickedly awesome on both PFs!