I suggest you sent a copy of the letter to Adam Burke and ask him to comment on the context and the snotty condescending tone

The person who wrote that letter needs a course in P.R, and had I personally received such he would get a piece of my mind in return.

That being said, it seems problems similar to this always seem to occur with properties in the UK and Germany and I think is due to individual hotels misinterpreting the T&C rather than a change in HH policy.

mike