There is a balance here. On trails that are more "public" and that includes Brushy, you have to balance between not dumbing it down and making it safer, especially on sections that are not marked as dangerous. PP is really safe and would be an easy/green with the exception of that spot. Several have been hurt. So you do something about it. Deception, on the other hand, is not intended to be easy, so if a bunch of people get hurt somewhere there is not the same level of involvement to "fix" things for the novice rider.
It's all a balance. The city is involved with the trail and condoning the building, so I would rather see some work done to make an easy trail more accessible; if you fight them they might just shut the whole thing down. It's all a balance.