Bruce was off-balance from the very beginning of his post-dance interview with Richard. He started off by being very flustered about the "hilarious" ending where Richard dumps Erin in favour of the muscle Marys because he is LOLGAY, and was muttering about not knowing what to make of it. Richard then went off piste, encouraged by Darcy's unfortunate comment and was definitely making comments that were not suitable for the teatime audience, and Bruce did need to shut him up but did so in an inelegant way.
I do think Bruce and Len have a homophobic streak though. Len has got a grip over the years (and he's very close to Bruno) so he's not as bad as he used to be, but Bruce is getting worse,