The video is a little long but it explains the why, where, what, and the mistakes that were made early on. It shows the rescue and the text stream with the Garmin InReach. He also points out that the lag time from sending to receiving a reply was around 6 minutes.
The Harbor Freight review disclaimer, this video early on has a four letter word in it that is not TOOL. The rest of it is mild mannered and sedate, but be warned.
Here is the link to the video,
https://www.youtube.com/watch?v=xfQStUhOzjY