I disagree with the idea that the C3 is a "touring car" built by "touring car engineers". This team built the Xsara, C4 and DS3, I doubt they forgot how to build a rally car in the space of a few years. Not to mention a lot of emphasis was put on their break year and how Meeke was leading the development of the car. So any excuses on this front are weak.
To me it seems that Meeke is in a similar way to Petter Solberg, he can drive fast but doesn't have the best mental attitude. Intentional or not, if he's not fastest he pushes and takes risks and usually it ends in tears. ALL of Meeke's wins have come in favorable road order conditions.
With this approach he will never be world champion because there are enough drivers who are at least as fast, even excluding Ogier, who can put pressure on him and with his attitude he will throw away a lot of points. One of the reasons Ogier won 4 titles was that he accepted when he can't win and even if he was pushing he wasn't going over the limit and accepted a podium. I like the guy but now I kind of doubt he will be WDC. Better chances have Neuville, Tanak or even Latvala.