I read the article. They basically identified the labels that are transparent in identifying their sources and the ones that are not:
Transparent:
"We do get it from certain labels, like Mobile Fidelity, ORG, ORG Music, Analogue Productions, Music Matters, IMPEX, Mosaic, Rhino, Pure Pleasure, Speakers Corner, Reference Recordings, more recently Sony/Legacy and probably a few others I can't recall off the top of my head."
Less transparent:
"These include Doxy (not Sonny Rollins' label—apparently there's another one using the same name), ZYX from Germany, Vinyl Lovers, Simply Vinyl and Abraxas."
If you are paying say $10.99 and the re-issue label is not identified, sure, you may be rolling the dice. But the transparent ones usually go to great lengths to explain how they do things. I really don't think this is a big problem among reasonably informed buyers. Certainly the vast majority of "overpriced" jazz reissues come from these very labels.