Quirk, i read the whole article i believe this is correct issue;
https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.13993
I read the whole article and it didnt talk about SPM being used as a media for growth; its a article on the SPM microbiome i.e the living moss and the environment that it creates around it, including the fungi and bacteria that the environment promotes. The article talks about the suppression of certain fungi and bacteria but then shifts to talking about how diverse and alive a living peat bog is. They key being that this article is focused on a living peat moss bog, not on SPM used as a growing media. Coulda guessed with a title like "The Sphagnum Microbiome"
The mild acidity of CSPM can easily be corrected with some Calcium Carbonate or Lime, benefitting your cannabis directly with Ca. When used in thirds with airation and quality compost the effects of the mild acidity is pretty minimal....I think a big part of the issue is that folks use the bagged peat dominate soils; that peat has been pasteurized, chopped, dried, and shredded, then steamed...Think sungrown, i.e black gold, sunshine mix, the real issue being is that the majority of this is loaded with sawdust filler, either mildy composted, or really low quality EWC thats made with saw dust. The kinda stuff that this thread is about. And that gives peat a bad rap. Real soil ingredients are rather expensive, cheap mass produced soil is loaded with filler, anyone who builds real soil know this. The peat bails are cut and wrapped then shipped. Straight from the bogs, never pasteurized.
True living soils microbiome is a diverse system with fungi, bacteria, and other beneficial microorganisms that live symbiotically working together in the Living soil food web. Especially when one uses rock dusts to stabilize the ph and feed the microbiome, and rocks compost tea and EM to make sure that you have a media that inoculated with the right organisms.