Scatsa there could be a few reasons why they did that.
There is a thing called area and aerodrome competency for Captains.
Scatsa at 1360meters is pretty short and it only has offset none precision approaches. So they may have a requirement to tick a box for the aerodrome competency to allow the captain to operate in there.
It might be something like self brief and 200 hours on type or 2 touch n goes with a TRE to get an immediate sign off. As they will want everyone to be able to operate into there quickly they go for touch and goes.
I really don't know, as that sort of stuff will be subject to the flight ops inspectors requirements.
Per say I don't think any TRE is going to go and do circuits at Scatsa if they can help it with new on type pilots.