You can't make Porsche the villain, just because Toyota suffers from a huge amount of bad luck. Porsche did nothing wrong so there's no reason to hope that they won't get rewarded for their work. It's the same with people hating on Audi, simply because they always put the most work and effort into their cars/projects and are successful due to that (don't know how it is international, but in Germany a lot of people hate Audi when it comes to racing for that kind of reason).
I think a lot of people seem to forget that Porsche doesn't want to race/win that way themselves. They'd rather fight for it with Toyota than just win, because Toyota had bad luck.