Usually they are just plain and simple a weak link in tarp construction. Prone to rusting AND pulling out, where well placed reinforced looped tie outs do not.
It APPEARS they attempted to address that problem somewhat, with placement in the webbing and not just through a reinforced section of Sil.
Grommets are still IMHO useless weight, and weak points in most tarp construction. Carry them and anything else you might wish of course, regardless of conditioning, or lack thereof.
I'm not UL yet.....but getting there, and useless crap, ain't going there, with me.
Don't waste your breath
Don't waste your heart
Don't blister your heels
Running in the dark