Not that I participate in stocked trout fisheries much anymore, but the mortality rate on those fish hooked on bait is insanely high. Add that to the fact most people don't set the hook quick enough that the fish don't get gut hooked and you can basically say goodbye to holdovers. I primarily fish trout a few months after the last plant since it takes awhile before their meat becomes even somewhat edible (mainly fall & winter when the rivers are either closed or the runs are small) and this rule will pretty much kill off that part of lowland trout fishing.

I don't c&r wild fish all day on any type of gear or bait. I move if I'm hooking more wild fish than I'm comfortable with (unless that run is fairly strong, which isn't the case in scenarios).