They had stopped entrance into BH for ages and the most recent autographs place was on the private road next to it (at least that was where I used to see people gather the few times I cycled up to Middleton Hall the last few years. There is always a chance that some one ran across the road in front of another car or a player wasn't paying attention when pulling away almost causing an incident.
This goes with what my mate said I think which was “ To be fair, John McGinn said to me: “don’t get offended if the players don’t stop, it’s because they find it a fast junction to pull out on”