Sorry to rain on your parade gents. TA is not for the faint hearted nor is it for the inexperienced "Just graduated from flying school" types.
Not being local pilot one needs to have a considerable experience in the types operated by TA. Most of the guys working there have several thousand hours in them and are in the case of the L100 ex military and with the B727 flown it with airlines
During the course of my carreer I have met many ex and present TA pilots and none of them are low time or inexperienced (Well some of the Angolan copis where)
After watching the clip. I does sond like the stickshaker, wether there is a fault in the system or it is a real warning is another thing. He might have been doing sort of a "soft field TO "where he kept the nose wheel up until airborne.
With over 2500h in the B727... well It looke funky
JJ