This is needed so sandboxed apps can use script Outlook with AppleScript. According to Apple, it's not a lot of work to implement this:

> For scriptable app developers, implementing support for access groups is relatively trivial, and requires making minor annotations in their app’s scripting definition (sdef) file. - https://developer.apple.com/library/archive/qa/qa1888/index.html#//appleref/doc/uid/DTS40015156-CH1-SANDBOXINGOSXAPPS__INCLUDINGSCRIPTABLEAPPSANDAPPLESCRIPTAPPS-ABOUTAPPLEEVENTSTEMPORARYEXCEPTION_ENTITLEMENTS