Most of this I would say is still pretty much true- the game hasn't had it's combat mechanics or anything changed that much since Horse Lords. Exact numbers are probably a little off, since for example I know in Jade Dragon Defense Retinues got a slight nerf with a cost increase. That doesn't really change anything though- pikes are still godly, camels / light cavalry are excellent, heavy infantry is solid, and heavy cav is good but way too expensive. Light infantry and archers are still really bad in combat unless you field them in crazy numbers (as in like 50-100k+), and generally their real value is just for being a deterrent to your vassals. Horse archers are still bugged, mostly useless, and completely surpassed by LC.Even if thit thread is old, I second the question, is op still accurate actually, and if not is there a more recent version?
As far as the new Jade Dragon retinues are concerned according to some Redditors, the only one of worth are the Tibetan Mountaineers which are apparently one of the best in the game now since the light infantry and light cav have some nice synergy with each other in the skirmish phase. That and the unique Tibetan tactic, "Mountain Ambush" is supposed is crazy powerful too, but it's not exactly something you can count on.