Not OP and I think the current thing works fine, but I think I know what he meant.
IIda and Ojiro are in enhancer because their quirk enhances a current trait that people have (speed and, idk, ability? Ojiro is tenuous).
The emmiter/conjurer distinction is pretty vague and I think anon only split cause he didn't want one group to have more for some reason. Conjurer is more permanent objects while Emmiters produce effects/events that go away. Momo making a gun that is now a parmanent object is different to creating an explosion that goes off then dissipates.
No idea about the last one, I guess its that he creates wind rather than creates air.
Also gran torino is in Emmiter because his speed quirk is caused by emmiting air from holes in his body to propel him. Still kinda dumb since Iida is enhancer even though his quirk is an engine rather than just better legs.