the only thing this means is that federer still doesnt give a shit about davis cup.
This is not correct. Everytime Roger showed up in Daviscup he gave all for his country. But as Stan seldom lives up to the expectations and is an underachiever in Daviscup, Roger is always under big pressure. Yesterday you could see he was a bit tight and nervous during the encounter. It was not lack of motivation, but nerves and an opponent, who played too good yesterday.
Without motivation Roger would never have won 15 matches in a row since 2003.