I'm sorry you can't see the explanation, but I know from experience that it's right. I really don't care what your calculator says - go ahead and carbonate however you like!
Have a great brewing day!
From experience yes, the efficiency with natural carbonation in a keg is more efficient than in bottles. It's also more predictable since ypu are filling one vessel vs 48. BYO agrees with me : https://byo.com/article/bottling-kegging-bottling-kegging/#:~:text=The difference is that you,the...
My experiences over the past 27 years of brewing are that you need less priming sugar to carbonate in a keg. You will have to serve under pressure, of course. But just enough to push your beer (~5 lbs).
Market, yes, that's why we see these two styles, the barrel-aged series, etc., but they aren't sessionable so the market is limited. I personally prefer a good Saison, especially if it leans more traditional in strength (<6%).
I have had Japanese beetles come back year after year. My hops have survived well and are still healthy and producing. Maybe it's my climate (we have long, hard freezes here?)