Sorry to bump this old thread, but we are trying to accomplish this with our Interesting Moment alerts also.. Any more details into completing this would be greatly appreciated..
I know this is an old ask, but I was trying to do the same thing based off of Interesting Moments. This is what I did:
1. Created a Smart Campaign with a Trigger --> Has Interesting Moment
2. Used the Filter "Has Interesting Moment"
3. Added a constraint to that filter "Opportunity Owner Name" equals XYZ
4. Flow --> Send Alert to email@example.com
You can do this for each Sales rep.