people just dont like to see their favourite player lose so they blame it on a mental breakdown of some sort instead of just accepting that he wasnt good enough
I agree on this for the most, but not in every case. At times it should be possible to just admit that an opponent choked against a fav player of yours. I personally have no difficulty in admitting that I think Andreev at least choked for a bit against Federer yesterday, just like Almagro's most recent loss against Nadal was a choke job as well.
It doesn't take anything away from the fact that in both cases my favs managed to pull out the victory eventually.