If you're new to lifting, any workout, no matter how bad, will put on muscle.
Personally, I don't like it. The leg extensions are bad due to the shear force it puts on the knee tendons.
And I'm biased against body-part splits to begin with. It seems apparent this PT needs to do more research.
Tempo: represents the eccentric, pause at the end of the eccentric and the concentric of the lift.
IOW, a count of four to lower, a one count pause at the bottom and a two second lift.
I've never seen anyone take more than 1 count to lifts nor a 5 count combined eccentric and pause.