I'll disagree with the "always" on TTRPG, it wasn't even a thing for over a decade vs always. And I still petition that the original hobby shouldn't have a nomenclature in honor of being the original.I don't think anything changed, and CRPG and TTRPG were always in use. If you say RPG without the qualifier, it depends on context and your audience. CRPGs started being called just RPGs because the people talking about them mostly ONLY played CRPGs, so there was no other kind of RPG that mattered to them much.
e.g. One doesn't call a wrench a Manual 1/2in wrench to differentiate it from a ratchet wrench, a hex wrench, an adjustable wrench, or a power tools.