The "false glideslope" theory holds no water.
ATC queried their position and offered alternatives, the crew's reply was indicative that they knew they were high and would press on with the approach.
It was VMC and being "local" pilots they would know that the view out of the window wasn't normal.
Absolutely NOTHING in the speed and height data looks normal.
As a former ATCO, what does bother me is that the TWR controller wasn't keeping a good eye on his piece of real estate and the customer and missed the runway contact.