The removal of fees and bookings for the unserviced and largely unmanaged tier of campgrounds is a welcome change, I did not like it when they introduced these.
Not getting 100% of the booking charge back sounds like it should cut down on people booking when they don't actually mean to turn up, so I'd say that's reasonable.
I have reservations about how expensive the higher tier charges are though, even the mid tiers are getting pricey for what's supposed to be a cheap activity.