It was perfect VFR conditions, it wouldn't matter if the altimeter read 3,000 feet, you don't land using the altimeter unless you are in IFR conditions, the GPS controlled glide slope indicators are your main focus.
It was either major pilot error (my guess) or some weird downdraft that affected the glide slope in a way that shouldn't for an aircraft this size.
The prior comments about the mechanics are correct. The pilot realized too late he was low, slammed on power and tried to nose up, but that moved the tail down just enough to impact the seawall. The tail and vertical stabilizer separated and he lost control. One poster on another thread said
"... The g forces in the rear seats must have been tremendous."
This indicates horrendous spinal column injuries in the rear cabin area. It also appears that the two fatalities were cabin crew in the rearmost seats, against the rear bulkhead.
Not always true. Most aircraft still use the mechanical type altimeter that you have to set the elevation for each airport. If the pilot inserted the altimeter setting incorrectly, it could have caused him to be lower than he thought he was. That's still pilot error and, I agree, that pilot error was probably the cause of the accident.
The only exception to that would be if there were a malfunction of the altimeter that caused it to read incorrectly. It will be interesting to see what the CVR and FDR reveal when those are analyzed.