This might be the first time I agree with you.
It could change some, but use the same lounges that are there now and make them safe. When I say change, I mean change the arrangement of how the trailers/lounges are laid out and put next to each other. This would help maximize space and allow for incorporating other ideas such as a green area, bleachers, sky boxes, chair backs, etc. They could build proper decking between each lounge and the fences for walking and moving around. They could build storage, grill and counter top space. It could be really nice and safe and still have the old look rustic look to it.