If I may offer another viewpoint as someone who has been along for the ride. I have been a student of MA-80 for almost six years now and have seen first-hand the transition that Dan speaks about.
When I started with Dan I already had a bit over 3 years of Modern Arnis that was strictly "here is what Remy taught". My first session with Dan at his Portland school was him sizing me up and identifying exactly what "era" of Remy I was from based on specific ways I moved. He showed me several places I could fine tune the techniques based on very sound principles of movement. Being an old Hapkido guy, I could easily see the benefit of what he was saying. He always joked that these were Dan-isms, i.e. his take on what Remy taught analyzed from the point of view of a smaller person. That last bit is central to how and why MA-80 came into being. Dan has the mindset of a small person and never tries to rely on strength or power to make a technique work. To use a different analogy, Dan thinks like a surgeon not a butcher - the scalpel rather than the cleaver.
Because I am a long distance student we have had to talk, write and exchange videos in addition to getting together about once a year (Florida and Oregon aren't even in the same country almost

). Consequently, Dan has been "forced" to go into much greater detail explaining things than in a class where he can easily demonstrate and students can figure out the details on their own with him fine tuning. As time has progressed I have found much less of "here's how Remy did it" and more of "here's how I do it" because Dan has deepened his analysis into the core principles that lay behind what Remy did. As he has fleshed out each principle, Tom Corsin got to be the development guinea pig back in Oregon. Tom is a big, strong guy who moves well so he is a perfect test of the soundness of the principles. I envy Tom. I'm fortunate to be one of the tests of how easily these principles can be taught. Dan explains it to me and then I have to teach it to my students. I video them and send it back to Dan to complete the circle and he can see first hand how well the concepts were transmitted.
Each time we get together in person, Dan and I go back over the core basics and he shows me how he is teaching it and why. That analysis has greatly enhanced and focused my own practice time. I have also had the privilege of seeing the draft of Dan's new book outlining the core principles upon which MA-80 is based. Dan has paid homage to Remy's art but MA-80 is now Dan's art
based on Remy's art. MA-80 is founded on the scientific analysis of the underlying principles behind Remy's art as well as the foundation arts Remy used to build Modern Arnis and the perspectives of other top students of Remy. In that sense, MA-80 is far more evolution than revolution. It doesn't claim to invent new techniques or tactics, nor does it try to add stuff from other arts so the outward appearance of MA-80 is 95% Remy. Its when you start to explore the whys and hows of each technique that you see where MA-80 has gone forward from Remy's art. IMHO Remy would be pleased.