I don't think it's a mental problem or problem with their speed. I think it's simply that Citroen is a better car than Ford. That margin doesn't need to be big, but when it is in there and such a great driver as Loeb driving with Citroen, Ford drivers have to push their cars over the limit to keep up and that's what causes those mistakes. (Well, Latvala can make mistakes even without pushing it over the limit

) Difference could be only 0.1-0.2s/km, but that's enough when you are driving against as good drivers as Citroen has. In Mexico Ford actually said that their car weren't on the same level with Citroen's in there, but probably that is the case in other rallies too with smaller difference.
The reason why I think so, is not about Loeb being fast. He is superb fast everywhere. But when Sordo and Ogier (both developing very well and fast drivers too, but still...) start to beat Hirvonen and Latvala hands down on gravel which should be their specialty, it made me wonder.
Thing that makes this situation boring, is that Ford drivers can't challenge Citroen for the championship. And Citroen won't let Sordo/Ogier challenge Loeb. So only one who can even somewhat challenge Loeb is Solberg, but there is still many tarmac rallies to come and I don't think he has resources to challenge Loeb in the end. So it's becoming very boring season alltogether

For me the interesting part of this season is to see if they let Sordo or Ogier win some rallies and how will Ogier, Kimi and Ken develop. Let's hope there will be more manufacturers next season.