Skipness 1E
You are entitled to you opinion, but I would appreciate it if you would provide definitive research to back up your assertion.
It may be true for people who have paid more than others in economy, but I doubt that too many in F/J appreciate playing sardines.
As Strake pointed out, in the first post, they have paid £3.6-9.6K for an exclusive experience.
Using a bus at all is not great for F, when one looks at LH/LX and their shuttles in Mercedes saloon cars or Porsche Cayenes to the gate.