Has SE basically dropped any furter progress with GC's?

[EnigmaticDodo]

Problem is, that again all the known rank upgrades are public knowledge, complete with icons and titles (the highest of these uninplimented ones being Champion),and SE hasen't done anything to remove such knowledge from the game

Folks can view those here if they want to.

The only thing GCs need to have is military glam. Glam really is the true endgame.

Honestly, yes. That and access to level 70 Dungeons with your squadron or above if it makes sense.