NO NO NO NO.
LFR (what you are asking for basically) is a very bad idea like wow showed.
Sure now you only want to finish the content, next thing people will demand loot cause they pay for this game as well as those "bunch of no lifers who sit at their PC all the time".
Honestly, t5 doesn't require anything that you mentioned. All it requires is a group of people who know the fight. Just make a group in party finder for an easy kill.