What was so danged hard about calling it a “32 Super”?
Getting the focus groups to agree with you, like as not. They, no doubt, did market research on what to call this thing before ordering up box art and setting advertising copy in motion.
This thing probably has been in motion since around 2017-18, and delayed by the mess of 2020. It takes some time to get the inertia of product development, product naming, and product exploitation rolling.
Now, the 50Kpsi thing could be a serious issue. Especially in 3" barrels. That supersonic bullet at only arm's length from your ear is like to hurt, even with lightweight hearing protection. That much oomph rocking back in a micro or subcompact is going to want serious ergonomics to control.
Which, to me, makes me wonder if this beast will wind up with a "short & weak" loading, much as the 10mm birthed the 40. Pushing a 100-110gr bullet with, say 35K will really invite a "why bother" discussion.
The "sweet spot" in 8x21/30super is probably a mid-size, a Commander or R1 sized sort of arm where you could bump up from 8-10 to 10-14 capacity in a "handy" sort of 4-4.5" barrel self-loader.
Mind, the notion, from above, of a carbine in 8x21 would be slicker than all get-out. the 50K pressure moved another 14-16" away, and all, would be cool.
Time will tell.