Various commentators have said post-match (Matty Johns was one) that it looked like the shackles had been broken & a great weight had been released & we just went out & played footy against the Dolphins.
It could be that Turbo's been stressed about his various injuries for a long time, & worried about further injuries (which is often when you get injured) & maybe it was a combination of DCE leaving, it being only 3 rounds to go, playing at Brookie on a nice sunny day, freed him up mentally & let him play close to his full potential again.
Hopefully that was him giving himself a break from carrying so much angst about everything & we'll see him back to his best next season under a new captain (if not captain himself).