As long as you don't stack then more than four or five high, wouldn't think they will have any issues.
They are designed to tear along the scored line on the lid, but they still have to maintain an air-tight seal to meet canning requirements.
I worked at a pet food plant and had to learn about the various packaging systems. Our standards were basically equal what the FDA mandated for human food. Amazing how much value people put on pets. Not saying it's wrong. Do it myself, but I figured I was just a bit of an odd duck.
"Stand your ground. Don't fire unless fired upon, but if they mean to have a war let it begin here." Captain John Parker, to his Minute Men on Lexington Green, April 19 , 1775.