Very true. The 390s are famous for having seats where you're staring at a blank piece of plastic, and they have plug doors.Issues with windows and seat alignments are one thing, but that seems to plague other builds regardless of door type and manufacturers.
I can't personally think of any converse examples, where a train with pocket doors has a notably praised seat layout, but they must surely exist somewhere.
Isn't running the train with the doors open considered completely unacceptable?There is also an operational issue when plug doors fail to close. The train will usually be out of gauge, either calling for mechanic intervention on running lines, or clearance to run in that state to an off-route stowage, (I'm sure there's a 'railway term' for that type of movement).
The out of gauge issue is much more important on a system with limited clearances like the UK's.
I know it's permitted to override the interlock circuit in exceptional conditions, but I thought that staff still had to be certain that all doors were closed before starting.