Outlook integration & Creation log

Maybe I am missing something, but why cant email integration use Creation log as destination for email (as notify automation can use), so when status change to done for example creator of task can be notified.

At the moment i have to use extra people column (which basicly contain same information as creation log) and use automation assing creator to people log so i can use mail integration. I find this kinda strange that notify can use and email integration cant use creation log when at the bottom they use same information.