On a serious level.......what you quote above is probably correct BUT, what would the state of the nation be if there was NO maintenance releases???? We, as pilots, have nothing more to go on as to the 'perceived serviceability' of any particular aircraft and therefore rely very heavily indeed on that document. I think we all know there are limits on the ability of the document to ABSOLUTELY GUARANTEE the serviceability of the aircraft, but as I said before, that is all we have available to us.
On a not so serious note; do you realise that during your 5 year stint at Her Majesty's Pleasure, if you get a job in either the leather goods workshop or pressing number plates, you will probably earn more than the average GA pilot headdown and arseup out here?!!!!!