Why isn't Guy Martin one of the new members of Top Gear?

Why isn't this show available in the USA?
https://motorlands.eu/2016/03/11/f1-season-starts-one-off-programme-guy-martin-coulthard/
I look forward to the results, however I expect the Red Bull to beat the S1000RR on every measure except perhaps personality. Anytime you get the opportunity to see Guy Martin interviewed, take advantage. It's a special treat!
