My understanding is that T-Tails are notorious for control issues.
As a man who flies all around the world I dread when i hear news of this, though I know stats wise you have a much higher chance getting killed driving than a plane, but still.
T-tails do have a problem of the wings and fuselage blanking the elevator at high angles of attack. The elevators lose effectiveness.
When I read about a landing accident in the summer at a high altitude airport, I always think density altitude.
High altitude (thin air) + high temps (thinner air) = less lift at a given airspeed. This is why we use angle of attack indicators - but I don't know if this aircraft had AOA or if the pilot was using it.
T-tails can stall out just like a regular wing giving you a nose down dive and when you’re close to the ground when it happens, well, umm, buhbye.
It’s a Bombardier, if you knew what I know about Bombardier you would never consider getting on one.