Burn holes are not rare in shrink wrap covers. However, it is very easy to puncture the material before it is shrunk.
Conversely, it is easy to repair holes in shrink wrap.
If it is a small hole, a piece of shrink wrap tape will fix it quickly.
If it is a larger hole, a scrap of shrink wrap approximately 2” larger than the hole may be taped on the original cover and lightly shrunk.