OK, but few experienced people think those other things are "needed" as almost no one used them for decades and they often had nice tanks. That's what was confusing me.
But on your last sentence, no, just looking at a successful reef is not enough to say whether it is successful because all the husbandry practices are beneficial, or whether it is successful despite the fact that some are neutral or even detrimental. That is so very often the case with chemical additives. People add them and have a great tank, so other folks assume they are good. That's not always true.
That said, I'm not making any comment on its utility. I can certainly see how it would act as a potentially different type of skimmer, and possibly more. If you are happy with the effects on your tank, there's certainly no reason to change.