As usual, classic requests are a sensitive matter as it implies access to data in the entire system, so any decision on this should not be taken as a rule to be applied without specific consideration in future cases.
With that said, my vote on the matter is to accept the request, on this particular case, on the following basis:
- The process is being handled by a strongly trusted member of our community
- The snap will be published by the upstream of the software being packaged itself
- The software at hand has a strong user base and community around it
- The fundamental software functionality is to access arbitrary files, so it cannot be confined with APIs currently available