I can guarantee that the Blitz system is a significantly bigger draw for people to play MNK than the removal of positionals.
Positionals was never the actual problem, MNK was just boring to most people.
They were like BLM without Fire IV, still throwing out Fire I.
Since ARR to SHB still doing the same combos and that essentially being it and whenever we got anything new it was either situational or rehashed situationals made ogcds.

Also when someone asks when to use SSS and the response you give is basically '' don't use '', then please stop talking about game design or trying to give people advice.
Just stop.