I don’t think theres anything that terrible about a URT, its one of several ways to do suspension which comes with inherent constraints, compromises and some benefits, the majority have written it off out od hand based on shonky 90s execution of the concept, but it does have some merit for certain applications still.
But I Can’t see why they didn’t just produce a HT to demonstrate the use of a Pinion Gearbox and a belt drive…
There seems to be a bit of an obsession with Gearboxes only really being used in pricey Blingy FS bikes, I know theres been a couple Nicolai HTs done but it seems its always touted as a bells and whistles thing, fancy springs and a posh Gear box for Muchos ££££.
I can’t see much wider adoption of the solution while its still targeted squarely at higher price point niche whores and not normal MTBers living with bugetary constraints, mounted on a URT bike or not.