The "oh guys they're new" defense would kinda cut it if their co-creator and mentor was not one of the cherographer and creative director behind some of the biggest artists in the world, and if 2 of the members weren't pushing 40. They should be ahead of the curb in that respect but instead they are 10 steps behind.
That bare-bones House of Blues performance on the show was shot over 3 months ago and they have not upgraded it at all since, no excuse really, especially since Frank tags along with them everywhere. It shouldn't take much effort on his part at all to give them a couple cute 8 counts, and some stage organization.
Half-assed performances is not going to help them gain buzz or a following, and I really don't see the label having the same long-term patience with them as they did 5H tbh.