It's one reason why I don't bother taking GTO when it's busy, for example at Halim it's usually faster to just queue up and pay your 7rb cash than to use the card, since people coming off the tol see the empty lanes and go "woowoo empty lane *yoink* mine!" - only to find out it's card only. Personally I feel they should be moved to the side, to be assisted when there is time. Read that as: you wanted to be fast, wait another 30 minutes as punishment.
I feel sorry for the attendants though, there's often some serious attitude on display from the various bapak2 who can't be arsed to read, or to have a card, and will hem and haw over getting a 50rb fresh card. That's also on principle why I don't let people borrow my card for shit like that. The exception is someone who has one but ran out of pulsa on it, or is short 1rb (happens sometimes), and then only if they're being nice about it to everyone.