I am pleased to see it is written in the syllabus!!
Raising the flaps on touchdown gives you more weight on wheels. This is very useful for max braking or during a max or gusty xwind, Where you want the aircraft to remain on the ground and stay there. (Never attempt or instigate a t/o without sufficient flap for the aircraft to fly, in the distance available)
I have seen Ag pilots use this technique in xwinds and/or on extremely narrow strips.
It has the same effect, without the braking effect of raising the spoilers/air-brakes on larger, higher performance aircraft on touch down.
In my view this should only be attempted where the aircraft is fitted with manual flaps. I.E., a flap lever.