Note that VASAviation's visualisations are not always 100% synched with ATC radio recordings, and the radio usually has gaps removed. It's a useful overview to see the tracks, but take the video's timing with a grain of salt.
Unless it is out of sync by tens of seconds, however, it is clear that they were handed off to departures and were neither responding nor even listening to tower.
Comments
Note that VASAviation's visualisations are not always 100% synched with ATC radio recordings, and the radio usually has gaps removed. It's a useful overview to see the tracks, but take the video's timing with a grain of salt.
I mentioned that in my original comment.
Unless it is out of sync by tens of seconds, however, it is clear that they were handed off to departures and were neither responding nor even listening to tower.