As long as either:
- Rewards/weapons in line with the Guilds of the city the GC,
- All GC's off all weapons/gear for every class,
- No class/job gear is offered as a reward in GC's from this point on.
i'm fine with being locked into one, (i prefer the 1st option/ 2nd is probably best for the masses)

And i do think being a member at low level of all is acceptable,
But not at hi level, the low level association could have its own content helping that GC by order of your GC.

But i would hate being forced to pick the storyline i want over the items i'll probably want if we go the way of gear placment from 1.18.
(I chose Grid over LL purely on the guilds suiting my character, (and KotM from that) after really enjoying LL in beta.)