It does sound like its been very bad over the last month or so.
But i thought it was fine in May when we went, I managed to park in the main car park most of the time and only had to use the overflow gravel car park once where they shut the evening session 15 mins early (not due to an accident, apparently).
It has its problems, but if its the same for us next year and it was last time, i'll still love it
