Bet you'd love to spend 30 mins scrolling up your chat to find out who won, only to find that about 10 people rolled 3 times, then you have 5 people who have rolled 100-100.
Raid roll just makes it so much easier. I use the Raidroll addon, but I used to roll 1-5, to determine which group, then 1-5 for which person. Never had anyone complain about that.