Because you need a pinion specced frame to fit a gear box and gates belt? Because I don’t know yet of any brand available in the US with the MGU? Isn’t that obvious? I addressed the Sram derailleur up above- like any derailleur despite being bulked up it’s still vulnerable to rocks and the like, still needs maintenance and the drive train still wears out quickly in off road use. Plus there is the cost. It’s not cheap.
Berm man tests the traditional pinion gear box on analogue mtb. Likes it but main criticism is cost(!) twist shift - it’s 2024 had he not heard of pinion smart shift? Plus weight and efficiency. Something all IGH’s have in common.
That’s the point of the MGU, with weight and efficiency not being an issue with a powerful motor. It’s a pretty lazy & unscientific review about a gear box that’s been on the market since 2010 or so. Where has he been hiding?! There probably aren’t many Rolhoff IGH out in his neck of the woods either for same reason of cost. For small companies with precision engineering the cost will be high. Again that’s obvious. But again you’re struggling to scrape together dodgy evidence against Pinion and it seems a little crazy of you. Since they announced the MGU less then a year ago and not as a prototype but as a consumer ready product, you’ve made your dislike of it very clear. You want it to fail. Pinion as a small company seems to be doing just fine with over 100 bike brands now using their gearbox and a dozen already using the MGU in under a year.
Maybe look at the engineering and specs yourself so you get your facts correct:
The Pinion MGU brings together, what belongs together. It’s more than adrivetrain. It’s a powertrain. It's motor and gearbox unified.
pinion.eu
You can complain about cheap Chinese warehouse & DIY (though you clearly don’t know enough about these) but you cannot fault Pinion on engineering or commitment or knowing what they are talking about. This vendetta of yours seems all such a pointless waste of time.
