Perhaps a study has been carried out to determine how many additional standing passengers can be squeezed into each Class 700 if the gap between seats and seat back table are omitted.
Thameslink isn't a metro service as it offers 1st class accommodation for the chosen few (probably MPs and procurement officials from DfT), so the rest of us in cattle class should be afforded seating quality at least equivalent to that already provided.
There have been sufficient photographs of the mock-up that was at Excel last year for it to be obvious that the projected width of the gangways is excessive.
This is where it becomes clear your either confused on layout or misleading people to try and prove a false point. Let me enlighten you where you are wrong.
This area is like this as its the disabled boarding area and why its the only place on the train to have 2+1 seating. The spacious gangway is to allow wheelchairs though. This happens in just a quarter of one carriage of every unit.
The reason for this is the wheelchair area is just in sight on the left of the photo (tip up seats area) and the disabled loo is in view. The reason for this is to keep the disabled facilities in the middle of the train (which is the gangway between coaches 4/5 or 6/7) so is balanced position.
The class 700 carry wheelchair ramps with each unit which are kept in a cupboard next to the disabled loo.
Very few people will be able to stand in the middle of that gangway and have long enough arms to reach the handgrips on the back of the seats. There are no ceiling grabrails or straps.
Your not suppose to stand in the middle of it. Its an actual design choice.
Seating of the standard shown below (minus the tables) should be provided in standard. Airline-style would be quite acceptable so long as there are seat back tables.
EDITED: Re-reading this it makes more sense. However the seat back table point was dealt with in the Class 700 thread as not a choice as it extended dwell times in the models that the DfT required all bidders to do.
The mock-up showed massive luggage areas, but situated so far away from the seating that passengers will be reluctant to use them:
Funny when I daily use Thameslink services this isn't the case. In fact passengers regularly leave luggage around the doors then take seats near them. Of course not everyone will do this but that why the stand back area are there for. To allow people to stand close if they want.
I realise that the exhibition train was designed to give an idea of the formats that could be provided, but the gap between the standard of accommodation in the 1st class section and that in the standard section was remarked upon by most visitors. Their comments were met with uncomfortable grins and attempts to change the subject by the corporate suits. Let's face it, the trains might be longer and more efficient, but from a passenger's perspective, they're as welcoming as a cubicle in an STD Clinic.
It seems you've confused the mock up and its layout completely. Did you check out the layout of the units provided at the event plus its printing in Modern Railways recently?
Your comments at the end of your paragraph see to forget the upgraded situation for those with reduced mobility or those in wheelchairs.
The mock up did feel cold, but didn't you bother to notice why this way? The lack of any posters, signs (other than a few basic warning stickers) helped create the feeling of more sterile environment that the production trains will.
It seems too many haven't bother to check facts (like the poster I've replied too above) and are making far too many assumptions based on opinions that reality doesn't share. Its all good and well stating what you believe but you need to remember that its just your view unless you can give examples (as I have above).
That said once again we are drifting far off the topic and this belongs in the Class 700 that exists for this reason. But then again many of these points have been tackled there and some people seem unwilling to drop in.