Scampi, valid concerns...but there are ways to control the use of tape to ensure it does not become a foreign material or other food safety hazard.
When I worked at my previous employer, we had specific rules about how tape could be used when taping up a torn bag. It had to be completed by a member of the QA team, and all of my QA team members were trained in aseptic techniques to ensure that it was done in a way to protect food safety. We also only allowed a patch to be used temporarily (and only after proper "bleeding" and sanitation procedures were completed on the torn area and surrounding bag contents) until the contents of the bag were transferred to a new bag, at which time QA had to sign off that the transfer was made and the complete patch was recovered and properly disposed of.
However, we didn't use food contact tape specifically, because we used a sterile patch that contacted the food - the tape was only used to hold the patch in place, and it was signed and dated with the time that it was applied by the QA person who did the patching. This was also only done when the investigation around the incident could clearly prove that the contents of the bag had not been compromised in any way that would impact food safety.