Titles don't mean everything. Janet Lynn and Toller Cranston never won Worlds, but their interpretation and artistry and skating skills are some of the best ever.
Min/Goebel/Li/Van Der Perren were all jumpers purely and their artistic ability paled in comparison to their technical ability, and to the artistic ability of the rest of the field. Even when they skated clean they wouldn't win because of their lack of artistry. Again, Plushenko isn't devoid of artistry... but it's not really a fair fight to pit him against guys who are known jump technicians. Just like it's not a fair fight to bring up Plushenko's record against Fernandez, when really it was the 2011-2012 season Fernandez started to blossom and 2012-2013 season that he actually became a consistent contender among the big guys.
Fernandez had improved in 2012 but by no means was he a huge threat to Plushenko... he placed 6th at those Euros and 9th at Worlds that year. Do you honestly think Plushenko would have won Euros this year the way Javier skated, even if he weren't injured and went clean? The reason I bring up Fernandez is because he's clearly a threat to Plushenko in Sochi, and PCS-wise, Fernandez has surpassed Plushenko in some respects. If you're using their last head to head as an indication of who's better, there's a lot that has happened since then. Even if Javier had skated his best he still would have probably lost to Plushenko at Euros 2012... his PCS has grown tremendously this year, and it's this year that he's truly surpassed people like Plushenko and Joubert and Amodio in terms of skating quality and choreography.
I should also say that I think pre-IJS Plushenko had better programs and interpretation than post-IJS-to-2010 Plushenko. It seems that when CoP was introduced, Plushenko focused on what earned him points -- the jumps -- and having been established he was bound to get high PCS if he simply delivered a clean program, regardless of the inbetween content (because none of the other guys other than Yagudin could match him technically). This was the period his programs declined artistically, IMO -- I mean, look at the first minute of both of his 2006 and 2010 Olympic programs... it's literally just basic stroking between jumping passes one after another. His 2002 Olympic FS to Carmen was better artistically than his 2006 or 2010, in my opinion, and he seemed more into the character of the program instead of focusing on checking off a jump list. I really wish Yagudin had stayed on, or Buttle had a quad, or Lambiel was more consistent with his 3A, or Takahashi peaked sooner because they could have absolutely pushed Plushenko to improve his PCS and we could have seen his 2012 Euros PCS ability sooner (and he'd likely have a second Olympic gold if it had happened).
1-Why? That is basically all Plushenko was doing by what you write. What about Goebel Vs. Plushenko 2003?
2-In PCS Fernandez has surprassed Plushenko? The last time they went head to head in FS it was 2012 and Fernandez was just as much of a frotrunner as he was in 2013 and Fernandez bombed. I don't have any doubts that if Plushenko skated the way he did against the way Fernandez skated PLushenko would've outscored Fernandez too.
3- Starting with the last sentence and going backwards you are really really overrating Plushenko's 2012 skate compared to past IJS skates. It was a very good skate but hardly a new skater. LOL! Every single element of that skate in 2012 had been seen before. Maybe because of lack of international coverage you didn't get the opinions you usually hear of Plushenko's skating and subsequently internalize them as fact. Plushenko really does not have "basic stroking" between the jumps. It is not. That is not really accurate in portraying the changes of direction in skating and different maneuvers he does while not being Inman/Nichol transitions between jumps hardly qualify as "basic stroking." That is just incorrect.