Did this guy land a bit short of the runway or was his glidepath a bit
too shallow? Something else?

He got a bit too slow, and couldn't arrest his sink rate. A Cherokee will
come down like a load of sand if you get slow on final.

Video also exaggerates the impact of any landing, in my experience.
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"