Because it is still a non-standard install. Direct attached is referenced for iSCSI. Just to cover the bases it is recommeded to file an RPQ. I see no reason for it to be denied.
Connecting RPAs directly to CLARiiON/VNX has been supported for a while now, intended for iSCSI environments where there are no Fibre Channel switches. Would there be anything wrong with using RP direct attach in a FC environment? Case in point - a SMB customer who doesn't have enough free ports on their FC switches, but has extra FC ports on their new VNX-Block array.  Is anybody using this topology? Anything to watch out for?  This is from the RP Deployment Manager Guide: [IMAGE]
RecoverPoint/SE direct attach