the secret is they should be using wax instead of glues, but that requires a warm squeeze and they are trying to save a thousandth of a penny and hope nobody notices. i email the CEOs about it.
You may be interested to know that these kinds of paper adhesives are usually intentionally designed so that the substrate (paper) tears before the adhesive does. This is meant to ensure robust packing and to give proof that the package has not been tampered with. Couple this with ever thinner and shittier substrates, and, well...
They need to talk to the people who make flour bags. Those paper bags glued shut with the strongest glue known to man, so that they are impossible to open without tearing a big hole in the bag, rendering it impossible to store the flour in.
Literally me today with a small soap container, but it was a trifecta: the lid separated from a plastic seal under it as with the picture, with the tiniest of rim you can barely get with your fingernails to pry it off to begin with, and a seal so strong you can't just puncture it with you fingers.
What we need to talk about are the built-in ziplock style closers on plastic bags that are everywhere now. Even makers of premium foods can't seem to get this right. I can only think of one product where the closer is an improvement on having nothing.
Boar's Head Deli meat. I guess the guys who sell spam for the price of a good steak can spare the expense.
I'm not sure how peanut butter is sealed but usually foil lids are sealed with an induction sealer. Cap it's tightened down (if not potential for a bad deal) and the foil in the cap is pushed tight to the bottle/jar. The metal heats up, melts the plastic and seals.