What?
Why does 12 being in the tactics universe have literally anything to do with anything (side note 14 is in the tactics universe as well). I’m pointing out this series has literally never agreed on what a SMN actually is. The older games had a somewhat unified idea then the newer games all had a totally different idea. 3 4 5 and 9 don’t look anything like 10 11 12 and 16 whether you consider the dominants as summoners by proxy.
You can’t just point to an old game and go “I want that as SMN” because none of the games agree on what a SMN even is. You seem to want SMN to be based on Rydia (despite pointing out how good 11’s SMN is that decidedly DOESNT act like rydia) but few games even agree on a core premise for SMN other than “summon things” which was true for both old and new 14 SMN so isn’t even an argument