Gorilla tape, as good as it is, won't last one summer. I have a plastic garbage can lid with a 4" crack patched with gorilla tape and it's lasted for a year, but it's on the shady side of the house, n ot on the roof.
Heck, it's trim. It can contrast with the rest of the roof and still look good. OR, I patched my roof a year ago near the roof ridge and I kicked myself that I didn't save the brand and color of the original roof, so I could get matching shingles. (And I even let a few left-over shingles get ruined and threw them away. Kicking myself again.)
So I let roofer get whatever he thought was good (and he only had two possible shades of tan) and you know what? There is too much light** in the sky and I can never tell if it matches or not. **Except at night, and I can't tell then either. Maybe if I had a one-story house it would be visible, even noticeable. But I don't think so. You can't see the roof when you get close to the house.
That roll stuff is just flimsy material and it's intended to be