Nice. The Scotrail version is a section with 5 fold down seats which takes a maximum of 2 bikes. It could take 5 bikes if they had front wheel hooks suspended from the ceiling. The other problem is of course that the bike space is usually taken up by people, or luggage, or prams.... More hassle than it's worth to try and explain that it's actually a bike space. Then there is the situation when the train starts off quiet and you put your bike in the bike space. A few stops later there are no seats, and Mr Angry gets on and doesn't like the fact that a bike is occupying 5 seats.
The solution would be similar to the photo in the OP; or at least take out the folding seats and install hooks from the roof, French local train style.