I see no problem at all. Its not like predators run around with metal detectors looking where there is an opening in an underground barrier.
There are alternate options also. You can container grow veggies, like squash, pickles, or beans on that run wall. In autumn, just remove vines, and restart next spring early. The early spring time will allow vines to grow sufficiently so when summer arrives with the more intense sunlight, vines will cover wall.
I like container grow options, because it allows for more precise watering, and feeding of plants. I container grow much of my summer plants and flowers.
WISHING YOU BEST,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,and
