Loving this little spat!!! What you are reading here is a culture difference between the old NATS boys club and the new NATS business driven beast we have today.
The trouble with the "old boys" is that if you challenge thier opinion they spit their dummies out and go all ad hominem on you before disappearing into the ether. No actual response to your points, no debate, no attempt to explain their viewpoint; just a snide remark and then off into the sunset while their mates come on to tell us how great they are.