Yes, but pivoted. Large (Nijisanji, Hololive, VShojo) hire MMD-skilled animators for:

For those interested in pursuing a career as a Kafka Kamihikoki MMD 3DCG animator, there are many free resources available:

remains the most accessible gateway into 3D character animation. Originally created for Vocaloid music videos, this free Japanese software allows users to import 3D models, load motion data, and create animations with surprising ease.