But given there are only a limited number of shots available in a game, keeping someone to 1-17 shooting is more beneficial than 0-8, purely because if he shoots it 17 times, that's 9 shots he has missed that someone else could've taken. Or, as iwen pointed out, that's 9 more 'empty' possessions.
I'll have some of what you're having...Keeping an opponent 1-17 has prevented more points than 0-8.Since 1-17 allowed 2 from a possible 34... and 0-8 allowed 0 from 16...Prevented 32 points vs 16 points.....Let's play with numbers!