You’d be surprised at what we can get away with h&s wise if we can’t allow it there’s a pretty good reason for it.
That’s my experience of the FC too, as well as being proactive opening channels of discussion when discovering ‘illegal’ trails and riding spots. There’s currently talks on the island (IoW) over various jump sites on various FC properties. There’s some resentment as a few have been blocked (due to shoddy construction and littering, on the whole), but ironically the ranger is very pro-biking and open to ideas.
My experience suggests part of the problem is (like most of the public sector) he’s overworked with a huge patch, so sorting out a jump spot isn’t the largest priority and, as with all large organisations, there’s a lot of processes that need to happen behind the scenes before anything physical actually appears to be happening.