As you may know, I updated the ten essentials list to 14+ essentials 25 years ago at THIS website. The link is https://www.backpacking.net/ten-essl.html

Although not explicitly listed (and I agree with you) I always carried my food in zip-lock freezer bags back in that day, so I had ample plastic baggies for collecting and carrying out my garbage, including tp. We might as well add improperly buried poop to this particular rant (I don't think many folks carry it out). These both are age-old problems that probably will get worse, along with many other societal adnorms.