I have centipede and mow at 2" every 4-5 days. My yard is 1/3 acre and only takes 15 minutes or so....I think it looks better than when I cut 3". Also, it's seems to have turfed up better since dropping the deck.
I’m the only one caring for most these lawns and I’m not licensed to apply. Maybe I missed the overall tone of the article and it’s wrote towards the homeowner that is thoroughly maintaining it from soup to nuts. The grass/weed competition is a major reason I followed the forums advice early on as a general rule.