While I basically agree with the distinction made in the article. I do have to say that there are a lot of pseudo-science-like behaviors by cosmology physicists. They too often state their beliefs as fact, or claim them to be so "mainstream" as to be beyond question.
For instance, I see statements on both sides of "Does space expand everywhere?" with some claiming that even the space inside atoms and the nuclei of atoms is expanding, while others claim just as vehemently that it is not expanding in regions dominated by forces other than "dark energy". As far as science goes, both are only theory, with redshifted astronomical observations currently being caused by space expanding, according to the mainstream, although there is no way to determine whether it is expanding at the theorized rate even in this solar system, much less in an atom or atomic nucleus. But, there are insistent believers who will belittle anyone who does not accept their particular beliefs as surely true. But, clearly, they can't both be right - however, they may both be wrong - even if nobody yet understands how.
Real science distinguishes between repeatable measurements and inferences based on theoretical constructs.