When I trained at Jetts I just used to bench in the rack. No other kunce used to use them when I went anyway. But at Goodlife now and like you say, 3 benches with no safeties (same in the work gym). Can still move a flat bench in to the rack if I really wanted to but it's a douche move in a reasonably busy gym.
I'm not sure why they don't have adjustable arms coming off the uprights. Guess people have only really had their egos crushed rather than getting physically crushed?