That is very interesting documentation, it sure would he handy if you were doing a DIY.
It certainly looks like they set it up for high power offload rates, and nice that you can turn off the special energy saving charging and go to conventional charging.
The alternators they show seem to to be rated at 240*F (p131) which is good as many are rated output cold. What I could not find is duty cycle at that output which is pretty critical if you are going to be running AC or long term big battery bank charging. The big question is can you really pull off 180 amps and run the van stuff which may be another 40-50amps over hours of driving without overheating the alternator? The second question is if the alternator has a temp sensor and turns itself down for self protection in conventional mode?
For me, I would be really interested in if the conventional charging mode would be able make it so you could run a parallel second alternator of the same size and type. If you could, it makes everything better, IMO, as it reduces the wear and tear on both from heavy use is redundant both directions unless one mechanically fails and locks up.
They have done a much better job of it all than the other brands we have seen in the newer models, I think, but a little more information would be nice to know.