Maybe I should read the doc not just search on the forums.
I just saw this:
Backup fails if VM is enabled with VMware Fault Tolerance
If a VM has fault tolerance enabled, the backup will fail. This is expected behavior. VDP does not support backing up VMs that have Fault Tolerance enabled.
While that stinks to high heaven, I suppose it answers my question.
So is this something that's planned to be supported? It would be nice to use VDP for truly mission-critical VMs, which are the ones one would naturally use FT with...
The answer is no.
No more new features for VDP. It is EOA now.
VDP is good for small to mid size business. If you are running Mission Critical VMs then you should look into other solutions.