It could very well be one of the most popular. I don’t see Zwift promoting the TechnoGym in that article anymore than the Bowflex, Lifefitness and a few others mentioned within it. If they would have put Life Fitness first would you still have the same opinion?
Even if Zwift gets a a cut of the sales, which is possible, I would call that business.
I see on TechnoGym’s website that they say it’s compatible with Zwift. Seems like it is a mutual promotion thing going on, like they have done with bike trainers in the past.
FYI, a lot of people go to gyms to use Zwift running and they could have TechnoGym treadmills there.