Shazz-zaam has hit the nail on the head.
There are many crew who like minimum slips in various places.
Yes there are some crew who want to visit their family in London or whatever, but most can't wait to leave the place.
Don't forget what you lot keep telling me, this job is NOT about the destinations!
Most people do like to get home faster, and that's exactly what the minimum slip in LHR will allow.