You may be right of course.

Regardless I know of ONE person outside the pros who is actually using this in the local peloton here in the large NY area. After a couple of years.

So the acceptance rate in the real world and in the marketplace is non-existant. Overpriced at best for minimal benefits.

It's an evolution towards technology that will be different, more elegant, far simpler, and offer more real world advantages. But in and of itself, it's nowhere. Still, credit to Shimano for the technology and evolving it. They came out with stuff that actually works, and nobody else has stepped up to offer a competing product. Primarily because there appears to be little market interest in my view. Expensive to develop, hard to sell at a price that will recoup your investment.

And I don't see a lot of this on pro bikes, at least from casual observation. botto, you were at the Giro in Mokum, was it more widespread this year?