Only thing wrong is that you showed us the Campag seatpost QR with the thread sticking out that you would have chopped off BITD - but wouldn't now because you know you can't get it the lopped off bit back again....
Some things should be left unseen (did the same not cutting down the skewers on my Look Mi80 so I don't think you did the wrong thing)
I've been contemplating just the same thing on one of mine for about 5 years now...!
Somehow can't bring myself to do it!
My primary thinking though - aside from any element of 'preservation' - is the QR is currently in a 26.8 frame. If I cut it to fit, I can't then transfer it to a 31.6 at a later date if I change the build...
Presuming the build on this pretty immaculate bike stays as is however, I think the cut can be justified!
Get the hacksaw out Ash!