Babies are incredibly difficult even in the best case. Sleep deprivation is intense. Breastfeeding is difficult. Adding in small additional difficulties adds up. "This is a bit more difficult" becomes a huge mess when you are on three hours of sleep and there are 10 different "this is a bit more difficult" things that people are suggesting to you.

Add this on top of any sort of complex baby (illness, allergies, colic, slow weight gain, etc) and suddenly the slightly less complex disposable diaper becomes a godsend just to save a few minutes or a bit of mental load.

No, but if you have a kid with no support system you’re going to find it really hard to add just a few more hours per week to clean diapers out every other day on top of everything else. If it was easy for you congratulations you had an easy one.