The A330 will prove to be a superb tanker and the RAF are very fortunate to be able to build upon many years of AAR expertise with their first ever tanker that won't have been someone else's cast-off. The experience of A330 aircrew from elsewhere will provide AirTanker with considerable synergy.
Well said.
Indeed - because deviation from the originally intended flight path is often an essential requirement for a good AAR crew!
You confuse operational re-direction with a key hazard of a Safety Case.