I agree with you completely.
Although the Contemporaine manual wind is very pretty as it is (classic and conservative with its solid case back), having a see-through case back would have been a bonus (if the movement was of the "right" size). As you said, it is a bit of a shame that we cannot view the cal. 1400 in this case (no pun intended) but I am glad that VC did not push the issue.
Patrimony (from watch magazine CHRONOS)
Even with the "standard" sized Malte Grande Classic, the cal. 1400 is still surrounded by a sea of filler
(sorry, photo credits unknown)
Cal. 1400 (upper right) together with a regular and skeletonized cal. 1003
From what I hear, VC will be coming out with a bigger movement (13 lignes?) next year...of course Alex should be in a better position to comment on this. At least I am sure that a bigger movement is in the pipeline.
It would be interesting to see the first watch to house such a bigger movement. At least it I expect it to have a see-through case back. Actually, I would be banging my head if VC came out with a pretty Contemporaine-type manual wind with a see-through case back next year (as I just got the Contemporaine with solid case back).
(gigantic mock-up of the cal. 1400 at the VC manufacture)