Scanning back, I can see I was responding here was what I was worried was a mistaken assumption that a meaningful abstract / summary can always be written for truly complex and novel topics. Sometimes all it can be is a sales pitch for reading the details, and I thought the summaries here were good enough in this sense.
But I agree the author is obfuscating weak claims via length / complexity (and it may be as much for his own sake as for his readers'). The basic claim ('maybe AI will be more explainable/tractable than initially thought') is IMO intelligible, and not completely nonsensical, but also extremely vague and vibesy, which, technically, I must agree is in the same territory as nonsense, at least.
Based on our other exchanges here we mostly agree with the problems of the article I think.