Agree with op.
We did cotton diapers and got a few one size covers and I made some wool covers .
We use the same detergent we so to wash our regular laundry . The diaper get a hot rinse and long wash another rinse and get thrown in the dryer .
I never understood modern cloth diapers , it seemed ridiculous to me to spend 39 dollars on one diaper that I have to wash specially hang dry. And have a special wash routine for and most of them don't even hold up for one kid when all the elastic and Velcro and such wears out .
Traditional diapers are the way to go
I use the same detergent I use on the rest of my clothes on LO's nappies, just less of it. They get a wash (40 or 60 degrees) and two rinses, same as yours, and I hang all my clothes as I haven't got a tumble drier (though at my Mom's I have popped them in her drier on cool).
And the only nappies I've ever spent $39 (>£20!) on are a couple of custom made pretties, worth every penny! The rest I bought preloved, on special offer, or even full price they weren't that much! Funnily enough the only nappy the elastic seems to be going on is one of the fitteds, the poppers and elastic on the others are fine, even the ebay cheapies I spent £2 each on.
I think you're right, you don't understand modern cloth nappies.
Each to their own, but don't think those of us who do enjoy AIO, pockets, pretties, etc, are just uninformed about the greatness of flats. It's just what suits each person.