I have another 2-part suggestion for the iOS app:
I think it would be super useful to show a played/unplayed state of all alert videos. Similar to an email inbox, I’d like to see the unplayed video clips in the list shown in bold or have an unplayed icon next to the videos I haven’t watched yet.
The second part of this suggestion is less important but it would be nice to have a single action to play all unplayed videos back-to-back to review all activity without having to select each video individually.