I'd put it this way. There are problems in some of the articles, but they're not really harmful misconceptions. For instance, I'm not concerned that the coverage of how a multigrade works or is formulated isn't quite correct. That really doesn't matter. I'd like a little more reference to the cold start matters, since that's the real crux of the issue with multigrades. Knowing how a multigrade is formulated isn't terribly important. However, it is important to know when a 0w-XX is helpful, and also that a 0w-XX doesn't magically become too thin in the summer. One of my peeves here is how some still would like to change oil by the seasons, without any clear rationale for doing so. Unless one has a real application specific reason to do so (i.e. when my F-150 was leaking like a sieve and had low oil pressure, I had to tap dance with my oil choices for summer and winter, to minimize leaks, keep oil pressure up, have flow in -40, yet not be spending $10 per litre), find an oil grade and stick with it, and usually the OEM grade is just fine for that. The argument to use a 5w-30 ILSAC in winter and a 10w-30 ILSAC in summer has never made much sense to me, at least for most vehicles on the road. You can do it, but really, why?
As for flow, and the matters related that cause confusion here, there have been all kinds of technical papers and videos shown, so I'm not sure how to make that lesson sink in. Misconceptions about that are spread all over, and even the oil companies take advantage of that.