biopharm, I can follow your conclusions but would want to remove one "coincidence" from the list, the two others already being sufficiently strong on their own.
That is, the company that produces the video's produces them for almost everyone, not just PPHM and Roche. I think there isn't on BP that is not on their reference list.
I think the reason has to be found in the fact that this company probably specialized in the production of 3D animations of macrophages, dendric cells, blood cells and other representations and that with an extended library of such 3D objects they can produce these video's at more competitive prices. As we have seen they allow really to zoom in on the elements and in some movies show really deep detail (eg: individual phophatidylserine molecules).
Furthermore the industry loves the idea that every one uses a same representation for a same thing (e.g. in all their animations a blood cell always looks the same and this at EVERY zoom level. So you will for instance never see a same type of receptor on a cell represented differently in different video's except for the involved molecules that will pass through it.
And you pointed out the positive effect of that yourself in your post! One could immediately correlate between both video's and see what from the one returns in the other.
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