No please. I've often queued for ST with friends and then withdrawn for the queue after it pops because someone in my FC or one of my LS-es asks to join us late. Let's say my party is almost full and we withdraw. That means the ST queue we just withdrew from would be down a FULL alliance. Let's say 2 parties did this in the same alliance, then the party that just got in, would be forced to abandon and requeue for ST.