Allow for multiple matches in step-custom-test-results-export step

GitHub - bitrise-steplib/step-custom-test-results-export step currently allows only for a single file match/upload, according to Test result search pattern input parameter. Is there a reason multiple matches are not allowed?

Also, it seems the Test Reports add-on can already interpret multiple files - see attached screenshot.

The use case I am looking at is that I have multiple UI tests XML reports and I would like to upload all of them under a single group.