I jumped onto the Ribble site.
No SRAM Groupsets listed. In fact, they were all Shimano except one Campy Athena groupset.
However, the SRAM was available as individual components, and seemed to add to my cart just fine.
Campy components were Athena, then at least for shifters, Chorus, and Record-10s (no Record/SR 11s).
I can't say if it is better or worse for SRAM, but taking their name down so they just don't show up on any searches would seem ill advisable, as well as ignoring the home mechanics.