If they were looking for "traffic"....they were "Clear Left!".
I wonder why if they were going to turn right....why did they crowd the left side of the taxi way? After all they knew they would be be swinging the Tail in that direction.
I would have crowded the right side and swung the tail away from the nearest obstacle.
Fortunately no one got hurt.
I am reliably informed that the Black Hawk tail wheel assembly was designed to a MilSpec that requires vertical load tolerances but not so much lateral forces.
The video seems to confirm that.