Being relatively new to benching i don't quite get the amount of benches that score no points, maybe a couple for HW if you're lucky. I've not even looked at half of them due to a 'what's the point' attitude if they don't score. (no pun intended!)
The selection of point scoring benches is quite good, don't get me wrong, but i think if the others were awarded pt's as well it would definitely be a positive, maybe open things up a bit more/more interest in those particular benches.