Do not ask for logic. Day Tripper is not the only one there. I cant even understand if it is a case of genuine cognitive bias or stupidity being spread for the sake of it. Nothing was as apparent as effect complete debilitating back pain in Nadal's game. His movement and serve were reduced significantly since the start of second set in the 3rd game when serving. And serve speed and movement are the two aspects which are not influenced by the opponent. 5 to 10 years from now someone inspecting these threads will get the idea that Nadal either carried a minor injury not significant enough to affect his play or it's a contentious topic. You know given the number of trolls this thread has had. There is nothing contentious here - Nadal was crippled, and significantly. Either he was acting or it was genuine, but let's leave out mind reading for another time. Anyone with minimum understanding of psychology of athletes will tell you 4th set of GS final when you are two sets down is not the time for histrionics.
For some empirical data here are Nadal's average first and second speeds in various sets:
Avg serve speed, set 1 (pre injury reference point)
1st: 180 kph
2nd: 149 kph
Avg serve speed, set 2
1st: 150 kph (~30 kph short)
2nd: 127 kph (~20 kph short)
Avg serve speed, set 3
1st: 158 kph (~20 kph short)
2nd: 131 kph (~20 kph short)
Avg serve speed, set 4
1st: 166 kph (~15 kph short)
2nd: 136 kph (~13 kph short)
If only trolls understand what it is to serve 20 kph short on an average. I could similarly add distance covered but can't find info from the official site.
This would be my summary:
1. Yes Wawrinka deserved the title. Who else was more deserving player of the tournament? More so when he defeated AO's best earlier.
2. But Wawrinka was fortunate to have a final opponent in half his capacity. An easy pass in the final. Anyone in the top 20 would have defeated that Nadal. If it is called discrediting or being disrespectful to Wawrinka so be it.
3. Nadal was crippled to a point were that level of substandard performance can't be even considered average. Way below par. Trolls have a job of pointing out a similar level from Nadal in the past. Or from anyone in a Major final in the recent past. Having followed Nadal's career closely, I can't think of any. May be Rotterdam '09 final against Murray, may be vs Ferrer at AO '11, not sure.
4. Nadal was very good in the first set and Wawrinka fairly and squarely won it. The set was hardly a blow out. Nadal had his chances while Wawrinka capitalized better. Just one break of serve decided the set. Hardly any indicator of the outcome of the match given Nadal's mastery of Wawrinka till that point.
I'm not a fan of playing injury card in every case we know Nadal had some issue. I dont believe in generalizing based on injury or subsequent lay off. I do discredit the opponent if an injury from a player was so serious that it hampered his play in my eyes. It's a fine line to draw. Nadal was plain a** lucky in Madrid '14 against Nishikori so was he against Ljubicic in Shanghai '09 where he was getting bullied until the opponents' injury. The same way I dont count much how he lost at AO to Ferrer in '11 or Wawrinka in '14. I however fully credit Rosol's and Soderling's performances. Even though Nadal had taken long breaks from the game after those respective defeats and he might have genuinely played below his best, there were nothing significant to discredit the opponents. Those opponents were on fire still. It was nice effort from a bunch of trolls to generalize Wawrinka's superlative performance against Djoker and club it with an entirely different match against Nadal to lend more credence to their theories. Laughable. The real reason for butthurt is mostly 23-10