First of all, I don't think that more than half of a second in quals can be defined "only"; it's a huge gap, despite a bit hot temperature.
Second, Button, albeit Michelin shod, did comfortable quals and race, being consistent all over the weekend.
This brings me to assume that reducing the problem of Ferrari's domination to a mater of tyres seems like a desperate attempt to keep hope alive..
As a ferrari fan, I hope more than you that this year won't be a new 2002, but for now perspectives are not good at all; many a thing must change among the competitors, and not only about tyres...