My projection/hope is that they both pretend to be going for a win, but secretly will be riding in support of Kuss to pay back all his efforts in their GC wins.
totally with you on this, we even made a sign! (3 climbs into penultimate stage of the Tour this year - only to see Sepp pass us with a bloody face after the crash on the Ballon d'Alsace descent :-/ )
Whatever form he’s on, he should ride for Rog.