Isn’t that a paradox?
Good stuff, it helps to know all this stuff, but don’t get bogged down in it, otherwise you’ll never write anything.
Yeah, i probably misused the word “concise” haha, I could have written it like 4x longer but as I got to triplets I was worried about a post length limit, so I finished it up. 
All of this stuff in modern times is just opinion really. It is completely possible to play 3 chords in a repeating cycle and piddle over the top of it on a major scale and end up with a successful song after a little bit of tweaking.
Personally, I had about 5-6 years of this stuff going all the way up to writing 4-part fugues and stuff. I haven’t really written in that style much since then, but I really feel like learning all of that technical jargon has helped a lot.