Yes a bit strange on this one, Shave and a haircut’s features have been outdated even in VFX to a certain degree, In Max Ornatrix way surpassed it in terms of feature set and compatibility, In Maya there are many hair plugins other than the built-in ones.
I haven’t seen it having any features that could potentially benefit real time applications. Maybe they intend to modify the base instead of starting from scratch on a new real time hair solution.
At this point its just guesswork.