Correct, not supported - VxRail is implementing other and better ways to achieve active-acvtive failover .  More detailed answers are in the Ask the Experts thread (starting on Page 5)
Hello,  I understand that the VxRail models will come with vSphere Standard Edition, which support 2 vCPU Fault Tolerance.  However Fault Tolerance requires its own 10 GigE connection, so does this mean that VMware Fault Tolerance is NOT supported on any VxRail model?
Support for Fault Tolerance on any VxRail model?