I was actually thinking about this very thing after reading that Fed won Dubai for the fifth time over the weekend. His last four titles before this one were all on indoor hard aka FAST: Rotterdam, ATP World Tour Finals in London, Paris Masters and Basel. He likes speed. Always has, always will.
But, do I think he could be the top baller over the likes of Novak Djokovic or Rafael Nadal over the next few years if more surfaces were quicker? Nope. Let's be real. While it's his best chance, he's not going to blow them off any surface consistently anymore, and not enough to grab the top spot. He'd be in the mix and would even sneak in another major. That's it, which is still impressive for someone at this point in their career.
But it's all just talk. We'll never know because the tourneys aren't going to all of sudden quicken up the courts. Me thinks Muzz might've had his tail tucked in between his legs a bit after this loss.