Actually there is a lot of information there. For instance the MCM Exhibit link from that has a lot of great historical information about the MCM/70. The curator of the museum Zbigniew Stachniak wrote the book Inventing the PC: the MCM/70 Story (McGill-Queen's University Press) which is very good.Given the lack of useful information on that web page it is unfortunate they are so close-minded about their artifact holdings.
People have been asking us for a long time to make our holdings freely available.
I was hoping not to have to scan the documentation to put online at bitsavers.
I guess they gave a talk about the MCM/70 at VCF East in the past, but I've not been able to find anything on-line about it