Not only they become, if they cross specific size, different government agencies are more interested in you as you have impact and they formally or not, trying to force you to apply this tactics.
I think it is silly to use this one sentence without a context and start arguing. The whole paragraph in the article makes sense, gives context and advice is reasonable.
I'm using overhive, that uses tmux+Procfile and seem to do the job. mprocs seem a little bit narrow but if somebody adding such a function to the project from scratch, maybe worth looking.