They covered off on weight and balance, performance charts, a written questionaire, flightplanning and a 2.2 hour flight with 6 stalls demonstrated, forced landings, diversions etc.
The weight and balance, performance charts, written questionaire and some flight planning sounds more than reasonable, BUT 2.2 hours flight time??? I'm presuming it was one flight.
Something isn't right if the flight took 2.2 hours. I say this for several reasons. The flight review is supposed to be a review of standards and a learning exercise.
If a competent instructor and competent candidate cannot knock the requirements for a flight review in an hour to 1 hour 30 tops then there's something seriously wrong.
If the candidate is having issues that require addressing they will be well over learning anything by the hour to hour 30 mark. The flight should have been terminated with an appointment made for follow up flights.
The flight review isn't failed as such, it's just not complete.