Both actors and producers can benefit when access to talent is not held behind the gates of a few powerful entities. We've seen the damage such gatekeepers can wield with the Weinstein case and numerous subsequent claims, where vulnerable actors have their careers held hostage to avoid upsetting predators who wield all the power. If an actor can pay the bills by doing many short-term mocap jobs for independent producers armed with sophisticated software, everyone can benefit.
In addition, motion capture opens up opportunities for very talented but otherwise less conventionally attractive actors who traditionally are relegated to type-cast bit roles.