Can't boot into 7.0 Nougat in VMware Fusion
The comments on the page you linked already contain some helpful suggestions from people who had the same problem with those instructions. Nigel Christiaans suggested enabling 3D acceleration in VMWare's settings, and several visitors reported that this got them past the same root prompt you're stuck at. Robert further suggests that you should choose "Ubuntu" instead of "FreeBSD" when you create the VM.