I think it looks more top heavy than it really is. The undercarriage is pretty substantial and is the heaviest component of the whole tractor and it is down pretty low which keeps the center of gravity fairly low. This tractor is being designed for a specific application, narrow hilly vineyards. It will get a trial by fire during testing for sure by the vinyard workers. They are squishing a pretty powerful tractor into a 54" wide platform.
If this project goes through, the next tractor is going to be 48" wide. I will probably look even worse.
Here is photo of the operators area. Note the steering wheel instead of conventional crawler controls.