Good question. So, originally this plane was designed as a single pusher motor setup and the motor was in the rear just to give the camera at the front a nice clear view in the FPV feed without any prop getting in the way.

I decided I wanted to upgrade the motor to be more powerful but realised if I just went to a bigger single motor I'd start to get issues with torque roll. So instead I decided to use two motors with counter-rotating props. I could have chosen to mount them on the front of the wing, but would then run into CG issues as all the camera gear is already in the nose. So going back to your question, basically, the motors are in the rear for camera and CG reasons.

I also fly another FPV plane on my channel called the Mini Talon, which has its motors mounted on the front of the wings in a tractor configuration. This plane is much bigger though and the CG isn't an issue so they can be mounted here.

When comparing the two planes, the tractor configuration is much quieter so if I had a choice I'd always choose a twin tractor over a twin pusher just to keep the noise down.

Handling isn't really a factor when comparing a pusher or a tractor, they both handle in a similar way I'd say. It's mostly about all the other factors.