I believe this is a test based upon gene copies, so not exactly the same thing as Roche found most predictive (protein levels) and ARQL tested for (they used IHC in your above cite). But still not comforting.
If what Roche found to be "most predictive" of MET levels is the same test that ARQL used to arrive at its numbers, I don't understand why that would be not comforting.