I think the reply is very carefully worded - almost as if LH had expected getting letters from Senators and had already formulated the reply. It is certainly difficult to argue with what he says. However, I thought the idea of being in competition was to bring forward desirable DIFFERENCES to competitors, and not to ALIGN yourself.
On a different note, LH obviously changed my booking guarantee at lowest fare 18 months ago when they ONLY offered me Economy at FULL PUBLISHED FARE for a trip to South Africa!!