There is a lot of good with this system, but I do agree that any system put together without full access to the equipment is stupid. Just plain lousy design and selling. If you need to hide gear, then give it rear access. If you don't have it, then put up a way to hide it on the wall. Like the motorized art pieces, or behind one-way mirrors. There are tons of options which allow for both service, and a clean installation.
Worse, and somewhat confusing, is the RGB Spectrum products, to my knowledge, don't allow for HDMI or digital switching and matrixing. The Extron products don't allow for true matrixing of digital content either.
This means the entire system was based around analog component video connectivity, perhaps without a clear upgrade path to digital. With the digital sunset coming in the next few years, how was this allowed to happen? I mean, that video wall processor likely ran $50,000 or so. This is not a cheap installation, and I'm sure the quality is all top notch, but there are some glaring errors which were made that really would frustrate me. Especially if I was that homeowner who is finding out that come 2011 I may get caught in the death of analog on my very expensive system.
Personally, I probably would have shot for a 2x2 setup of the micro bezel Samsung video wall LCD displays which have basically no bezel and could have been on articulating mounts and allowed for a single image to fill the entire screen, in proper aspect ratio, while still providing the capability to show 16 sources (or more depending on setup) easily.
Definitely not the way I would have done it, but for the money spent, actual reliability is probably not the first concern.
Well, until that day when the RGB spectrum fails or the analog switch is flipped.