I don't think many CAT pilots would do it out of choice.
Ops tells you to shift an airframe the IFR flight plan gets submitted a couple of hours slot comes up on it due to flow restriction in an area sector. The aircraft is required 30 mins ago to be somewhere. Crew get told to take it VFR. Its legal so you have to do it or risk having a no tea and biscuits or possibly worse.
Until the ANO is changed so its not legal, it will continue to happen whatever the opinion of pilots or ATCO's.