No, you change it if you have time to make a good system.
Does it, honestly from your heart, seem that they have any time whatsoever at the moment, or have had time for it? For a system that is working without problems, even though it might not be the most favored system, it still works and there is no reason to change something that actually works, with so many things more direly needing a revision.
Which is why an addition would be a lot more welcomed now, a rather small one.
It would require a new mesh for the window, mostly some copy + pasta from the abandoned tribe code and then an addition so it keeps the memberlist to the new abandon tribe option.
Excluding the inactive accounts is going through a lot of troubles and just complicates it further. It's just meant as an easy way of fixing something that is a pain in the ass until something better can take the Totem system's place.
Besides, your system, MrDDT, deals with an entire different topic. How to change the gaining of land, I just want an easy way of upgrading my tribe without having to go through an entire re-invitation procedure.