I didn’t know this about the HV plan. The SSB2 for LV and MV both have work above threshold, and some VO2 intervals get introduced in the second half of those base plans. I get from a volume standpoint why they wouldn’t add them for HV, but really there should be some kind of introduction to get that system primed for build.
I’ll also note there are a couple posts from TR folks this past week indicating there are plan updates actively in the works, so it is possible your request is already in the hopper.
Nate actually responded to this comment in another thread around that time. Here’s what he said about that statement. (side note: the search function on this site is incredible.)