Maybe two versions like the new Cervelo... one for the UCI & one for Tri?
Or maybe Spesh just greased McQuads pocket's sufficiently that the UCI invented a new math where that massive headtube profile works out to be 3:1, lol. I don't actually know for sure... just looks to be way beyond a 3:1 ratio.
"A quick summary, the fork-UCI illegal, the downtube-UCI illegal, the seat tube/post-UCI illegal, the head tube/tower fairing-toatally UCI illegal, the bottom bracket-you get the idea..."