The Mystic and Tarandan Psionics

Interesting…has anyone worked out a good fit for the Mystic with the Tarandan tradition from Dark Sun?

Wizard of the Coast made this version that go until level 20 for the mystic (psionic class)

Its not dark sun related but general

In Athas there is only one order of psionicists called “The Order”. I think that part will need to be adapted for Dark Sun…

For all I know, the Order functions more like a faction, rather than a mystic subclass.
Overall, I don’t have the best of impressions for the mystic class; for me, it needs to be tweaked before it could be used for Dark Sun. Anyone else have a different opinion?