How stupid is that!
At the end of that letter they even "threaten" CAA with: "The next time an incident/accident ocurres... we will demand an answer that will be published".
In everyday operation of an aircraft, there are technical faults that impair safety, and as my butt is in the ship, I will not fly without having fixed, no matter what MEL says, and then there is all that stuff, that gets written off by the technicians anyways. Like intermittend "L FADEC channel 2 fault". Now, I can put that into the book, and get stuck at some airport where there is no maintenace to put there stamp in the logbook (they don't fix it anyways, they just put their stamp in and tell you to go fly), or I can take that home to my homebase, and have my own mechs look it over. That is, of course, there is no maintenance action due acc MEL.
You might not agree, but I think I get paid to decide things like that...