“Kinda like cling wrap for leftovers...”

I don’t have that problem

“…to withstand being pierced by a blade of grass anyway.”

or that problem surprisingly.

It just does very well at keeping the tent clean and keeping ground water from soaking through.

My main problem is it is so light that a sneeze can move it. I have to put rocks down on it so it will lay flat enough for my tent. Also, I take advantage of the wind to keep my ground cloth blowing straight while I lay my tent upon it.
Also, I have a problem folding it. It traps air so easy. So now I fold it lengthwise in sixteenths (and once in half widthwise) and roll it up to squish the air out.