its fine to not accept the rules and choose not to stay at the CP that you have booked if it not what you require...
but just think, lets say you arrive later than planned because you did some site seeing along the way and you pull up just before dark and you stick to your guns and not stay at the caravan park because your trailer doesnt suit the site configuration of the park..........there may not be another option and this may cause extra stress on the family at the wrong end of the day
instead of the words avoid, maybe a suggestion to member is to ask the quesiton prior to booking
and yes i do understand the issues softfloor CT canhave if they have a lot of canvass hanging off the side....seen plenty spin the trialer 90 degrees