I have already seen this five times in less than a day. Someone joins the group and because the party leader thinks they are a poor build it's auto-boot time.
The new UI bars, while nice and helpful in alot of ways, are already being used to tell people that if they don't have the uber-flavor of the month-build then they shouldn't even bother.
I mean, really, minimum of 200hp for a VOD is recommended but I took a toon in there (rogue) that had 177hp and guess what...he was the only one who didn't die. VOD run last night....sorc with 190hp joins and 3 seconds later is booted. For some people, with limited time to play, stuff like this is just going to discourage them and send them packing which means Turbine loses that income.
Come on. We've lived this long without that info, and, while I said it's nice knowing how many hp someone has in the group so you can throw a cure light instead of wasting a cure serious on them is great, but if you're that worried about your SP, you need to learn better SP management skills.
And no, this hasn't happened to me, yet, but I expect it will as I have a couple of "test-build" toons I like to goof around with.