For what it's worth...
Denis's Base Value was
73.23... As
@CanadianSkaterGuy mentioned, he only had one quad which was not in combo (a big disadvantage for GOE) and doubled both jumps in his 3f-3t combo... Nowadays, his 3rd 2t would even be invalid.
Patrick's Base Value was
76.08 with big GOE on both quads including the biggest paying element of the night with the 4t-3t combo. This is exactly what saved him, and though his 3f-Eu-3S wasn't great and received negative GOE, that meant that he had two combos with a triple jump as the last jump... instead of the double jumps Denis did. (though he had a brilliant 3a-3t).
Denis skated better in the LP and received a much better score than Patrick. Denis also received good PCS. Patrick didn't get the huge PCS he would normally get for a clean program (and appropriately so). Judges didn't favour him more than they favoured other champions in other competitions.
Patrick had a whopping 7 points lead before the LP. That's pretty much a triple axel ahead... an extra jumping pass altogether before even skating the LP. It is hard to recover from that for his competitors.
I always loved Denis's skating. I would have been fine if he had won that year, especially with the skate he had.. Judges did give him the win in the LP. But he didn't win because his base value was too low to make up the 7 points lead Patrick had. If Denis had done his 3-3 combo, then he would have won. He didn't win because he didn't manage all of his content.
If someone said, 2013 was my favourite worlds because Denis skated superbly ! YES. But anything else seems like an attempt to be dismissive of Patrick's achievements. Why can we not celebrate the champions of the sport ? Why always this desire of rewriting the history books? I certainly could list quite a few worlds and olympic champions who took advantage of a brilliant SP to win their titles despite failing in the LP.