This is not true. Mod support from the mod itself is also possible: See Gany's End.
Relying on the mod author to create support for the other mods is unreliable, considering the author has so many request to add features.... What are the chances that your suggestion will get implemented anytime soon?Yes, good old-ish Endium. And Mariculture also adds tool parts. And is the integration of Thermal Foundation done by TiC or TF?
Why not put in some effort & do it yourself when its so easy?
I believe that works the other way; TiC, or rather ExtraTiC, would have to add support for AoA metals and gems.
... or you could DO IT YOURSELF!