Iron Mongoose, I think the same way in regards to how the MotW articles should go. I'm working on a second one and it is helpful for me to run the mech and variants through a quick MM game to see how they work and what they do well. I try not to have too many preconceived notions going in to MM sessions. The TRO fluff is nice as a guide but we all know there are several mechs that are fluffed for one purpose that are either not so great for that roll or just better at something else.
The Scylla was a bit easier since I played it "back in the day" before I left the game, and it has always been fun to play. My perception of mechs is I want to play what's fun. The Scylla always is fun cuz it takes a little finesse.
As for the Vipers not learning lessons in the IS; they didn't seem to learn from many of their mistakes. Their is a reason the Ilkhan piloted a Black Python and not a homegrown omni. I can't think of another khan in the modern era who did not have an omni as their personal ride.