I know what it currently does, the idea was to change TP's functionality along with the sweeping FP changes we're seeing. I agree that currently it is merely a time saver, but that very time saved was what kept the balance in check, namely with what we could get added. It's very hard to balance a profession when you're talking about abilities from multiple professions. Also I wasn't suggesting an NCU wipe, just the buffs that you cast while in a prof to be canceled when you True Prof. Oh by the way, I can't believe I forgot this, but the whole idea was based on the removal of the lockout. It would be incredibly pointless if the lockout remained in effect.
Few people bothered to wait those 20 minutes, and if they did, the benefits rarely warranted doing it again. Essentially when we got TP, we got an extra buff from another prof. Which certainly wasn't a bad thing since agents needed love, but it was also somewhere both other players and FC could point to when agents would ask for something and say, "But you have that." I liked using TP, it added variety to the otherwise standard doc fare, but I think its time is up. FP as a whole is changing, and for the better I think. What I suggested is in itself a way to save time, but to a different effect. It's to save time when using professions, so we can swap them out when feel the need. Tank just die and has to run back? True Prof, Shadow Enf. Doc? The same. True Prof would function to allow us to truly be the fill-in where needed, without having to wait to do so.
Also I wasn't suggesting an NCU wipe, just the buffs that you cast while in a prof to be canceled when you True Prof. The idea is to swap profs whenever we feel the need to do so. (except in combat, because that'd be totally overpowered). With the revamp of all the FPs, buffing ourselves with other prof's buffs should be unnecessary anyway. I certainly understand where you're coming from and I would have absolutely agreed with you in the past, but given all these new revelations and changes, I think True Prof is up for change too.
I like to think agents were originally intended as the filler profession, this is just taking that concept a step further.