From the parent's description it sounds like it just parses log files, doesn't seem like it would augment the behavior of the app generating the logs at all. Curious to know more about why something like that isn't possible on ipadOS though.
In this specific case it's because the log file (if the iPad version of MtGA even generates a "file" for its logs as such) exists in a location only accessible to the app, not to the user or other apps. And the iPadOS model means that there is no way to reach into that app's data to convince it to cough up the data you want.
