Surely this should have been picked up by ATC? The tower should have picked this up when doing the last look checks on the aircraft?
No I don't think you're wrong, however it is the pilot's responsibility to ensure he is free from obstructions etc before taxiing.
I'm not surprised at the tower not noticing it. Foxtrot is a significant distance away, and, I should think they've got other traffic to think about at 0930 on a weekday morning