Maybe, if it can be done as a one time offer. I don't think enforcing it would be good since a lot of people would lose looms in their armory from the inactive.
What about a system where you get as many points as looms you currently have, then each time you respec an item the counter goes down (by the lps needed to get that loom lvl) and from the first usage after a week/month/other period the remaining points disappear?
Would allow to respec the same item various times, but only for a limited period and with the unability to respec other stuff. Maybe even make respeccing an already respecced item cost twice as much.
That way you can decide when to use the first one, but once you start you need to do all the changes in a limited timeframe (to prevent respeccing into FoTM when buffs/nerfs happen), and inactive people can do it when they return, not affecting armories.
