If Johnny lands 7 clean or near-clean triples in the FS and Lambiel has his usual messy FS with a quad but no 3As and other jump problems, Johnny can still beat Lambiel without a quad because Johnny has a 9-point lead going into the FS.
If they were close going into the FS, there's no question Johnny would have to go for the quad to beat Lambiel.
Stephane always scores higher than Johnny in PCS that could easily make up for at least 5-6 points out of those 9 Johnny has over him now. A clean Lambiel would get over 80 in PCS, a not so clean Lambiel falling and doubling still will get 75 in PCS, Johnny gets 75 in an excellent performance.