Fed already answered this question
When asked in the presser why he stuck to the tactics in this match but went away from them in Australia, Fed himself said "Rafa has also a big say on how the points are being played", so obviously he agrees with what's being said here that it's not simply a matter of using this gameplan, it's that this time he was able to do it but other times Rafa doesn't let him do it.
So, I agree with Fed.
BLX Blade Team 337g. OGSM17/FortSweet17 @ 50lbs.