i kinda turned my head for a second during the interview, but the last thing i heard from Fed was "Rafa just played too good" or something like that. then, silence, and that's when i turned my head back(to the tv) to see Mac saying "let me give you a hug".
to me, it did seem like Mac did that because Federer started to get choked up, and it did look like he was gonna start crying. and we all know how hard it is to talk while crying. so, i think Mac took a good que, and let Federer off the hook.
furthermore, as Fed was leaving the room, Rafa was walking in, and immediately said "i was crying too, for 10 minutes on the court".
so, i'm pretty sure Fed was on the verge of tears. as awkward as it was, i think Johnny Mac did Fed(and all the Fed fanboys) a favor.
Johnny Mac rules!