You misssed the leading point!
The author stated that using the Tab key is problematic when restructuring a document. I believe the statement was that you wind up with Two Tabs if paragraphs are combined. Using the Features as recommended eliminates that problem. For sure hitting the Tab key is easy and becomes natural. Eventually you won't even think about it. (just like my TWO spaces at the end of each sentence!) But as a tech support person, and one who writes technical docs fairly frequently, I do re-structure my documents frequently and having things like double tabs is a real PITA to clean up... To be quite honest tho, I stopped indenting paragraphs decades ago! I prefer the squared and symmetrical look of no indent... So I guess I'm breaking a punctuation & grammar rule too!!!
