Agreed Pennino. The VMware docs are discussing VMware HA, not DRS or vMotion. To be clear, HA is not the same as DRS and does not leverage vMotion. I can understand MS's concern around vMotion in a DAG environment but the concern around HA escapes me. Does this mean MS does not support rebooting a DAG member (which is essentially all HA is)?
Don't leverage DRS or vMotion with DAG (though as some have mentioned they do work), but I think you need to reread your own support statement regarding the VMware HA feature. If you don't support HA (which is a crappy name for the product, because it isn't really HA) then I find it hard to believe you support recovering a server from backup onto new hardware. There seems to be a fundamental missunderstanding of what VMware HA actually is.