It also raises some of Herge's own politics, including his own right-wing views in his youth
It doesn't really though, does it? It makes suggestions and implications, but doesn't actually provide hard evidence of anything - and actually makes some serious omissions.
Take for example the Léon Degrelle association - he was an acquaintance of Herge's through the circles of the paper, but it over-eggs the pudding to say that they were "close". As far as I know Herge was monarchist, but not actually a Rexist (which was a political movement) and misses entirely the fact that Herge was incensed when the Degrelle and the Rexists used one of his illustrations on a poster, and either sued, or threatened to sue (I can't remember which) them if they didn't desist.
Wax Barclay Fegwell:
I doubt the people it's targeting are right wing
I don't understand the point here - do you mean the people that the article is aimed at, or the people whom the article is about? If the former, probably not, if the latter, then yes, they are, and would not wish to be seen as anything else. There are still Degrelle apologists in Belgium, for example, and they take any opportunity to peddle nonsense about how close Degrelle and Herge were, and how Degrelle was an influence upon, and even a model for, the creation of Tintin.
Wax Barclay Fegwell:
that label gets applied to everyone that's anywhere right of the left
Well, yes - that goes without saying, just as anything left-wing is anywhere left of the right.It can't really be any other way, can it? I agree, it may be reductive to look at the world in binary terms, but that is what those terms mean.
You are also making an implication that criticism of far-right views is the preserve of the left, and it isn't; Herge was definitely a conservative, and he was critical of Degrelle, but
there are many, many conservatives (and indeed Conservatives) who have stood up and fought against the likes of Degrelle and that ilk. The author of the article doesn't state their politics, just that far-right groups have tried to adopt Tintin as some sort of example of their beliefs - this could be position of a moderate, what in Britain has been called in the past, "compassionate Conservative", without any hint of being "leftie".
There's also a circularity in the argument that they are "tip-toeing" around something, while also "stimulating emotion" - which surely would mean that they aren't tip-toeing at all, but addressing their subject?