Hmmmm, highly unlikely that anyone would achieve that level of utilization on a small jet. If he said 12 hours a week, that would be nearer the truth I would guess. As for Flight Global publishing these quotes ; they are only quoting what they have been told, but I guess it does mean that you can take any "facts" like this with a pinch of salt.
I would also point out that anyone can sell a handful of fivers for a quid which is what seems to be happening. Perhaps their USP is selling below operating cost?