This is a legit concern.
The couple of times I saw snow with my hexamid I didn't have a problem... but there wasn't a lot of accumulation. There was at least one trip when the bug netting perimeter on a MLD Superfly got embedded in snow. There was a slight thaw, a freeze over night, and I found a chuck of the netting embedded hard into the snow. I almost didn't notice the problem and might have ripped the netting. I got it to release by melting the snow with a water bottle filled with boiling water. It was annoying but not a big deal.