Hey, I'm on your side...kind of.
However, you must admit it's pretty poor form not specifically advising teams that their list of kickers needs to be in kicking order.
Was there a memo sent out regarding the shoot out?

Would have alleviated confusion if the referee specified that there needed to be a specific order, though.

But, as you said they missed 3 anyway. There's been a order of kickers for as long as I can remember. Fifa do it. They heard the referee tell the other team it needed to be in order. They had the same incident occur the week before and didn't learn from it.