1. What objects are going to hit you in the face?
2. Train pax dont like them because the country side is moving backwards. This is only an issue on take off or landing.
3. Not convinced as to why the seats have to be stronger facing the other way.
4. There are a number of rear facing seats in First and Business class areas. They seem to sell ok.
5. Rear facing seats on trains with tables in between seem to sell ok.