Anyone in LFG is welcome to ask for specifics to fulfill whatever it is they are doing, just as you said, banana hammocks and all 🙂
If they were upfront and said they didn't want my 50 on the team because it would take away their experience of learning the game, I'd respect that. It's a huge game, I can go do something, anything else and not give it a second thought at 50 with access to Ouroboros and every TF/trial. At low levels, you're far more limited.