lol, ironic post from you. I've already said offering advice is fine, but not everyone is going to want it. Go ahead and kick new players for not obeying you if you want, but you'll likely eventually get reported.
Again, it's casual content for casual players. The fact that it might occasionally take an extra 10 minutes because people are new/casual is why you're getting roulette rewards and new player rewards. So, suck it up.
I haven't done any 70+ content yet, so maybe it's more difficult. Since trusts are an option then new players can just do those if they want to have fun anyways.
In everything I've done, however, it hasn't mattered. It's like a 10-15 minute difference at worst if the DPS don't know what they're doing, and you still never wipe. I've not yet seen a reason to care much that a new player wasn't taking it all super seriously.
Also, hit my post limit. Take care everyone.
