I think the message is this.....
Traditional archery/bowhunting is supposed to be simple. At least for me. Back to basics. Don't want to "worry" about equipment...just want to shoot it.
Tuning cartwheels is fine for those who relish creating a challenge for themselves. Some of us don't want to do it. But the info they get from those who "love" it is often confusing, challenging, costs a lot of $$$ to do...and a whole host of "other" stuff that really messes with the confidence of beginners and discourages them, IMO. Not everyone, in fact I'd say most of us, like to tune arrows...we just want to shoot them.
In 40 years, building at least a half-dozen selfbows and backed bows, and laminated bows each year, I almost never have issues with arrow flight. It's simple. Understand spine, and paradox, and what creates good flight, and you can easily make good arrows that will fly.
If you like to "muddy" the waters and experiment, Okay...but it shouldn't be rocket science....we're scaring the kids here! Teach them the basics, then "play" all you want. That's my 2 cents.