Might I suggest that the icarus metaphor could suit well? I would mention that story only ended badly because he refused to fly lower. Personally I'd suggest scaling back some of the processes that are currently done by the mod. Using the vanilla education submod, I've noticed, actually seems to improve stability dramatically. In fact, I've made a few changes to my game, and have made it 300 years with only one crash, and without a slowdown. Here's what I've done that seems to dramatically improve performance:
1. Used the vanilla education over the established type.
2. Removed all Hold-attached (decision made) mercenary groups and decisions.
3. Restored vanilla assassination methods.
4. Removed all "Strategist" related modifiers.
5. Removed the TelevanniRelations.txt.
Doing these five changes has made an incredible improvement to my game, and seems to be working fantastically. I know that removal of some of these things is not probably what you want to hear, but the results speak for themselves, my game is infinitely more stable and reliable with these fairly slight changes made. It also still feels like the Elder Scrolls world, while being returned ot the mechanics of the initial game, rather than the decision based events that exist now. There's other changes I'd suggest that you could remove that may improve stability that I have not been able to do:
1. Remove Atmora. I know you're planning on colonization, but it's not in now, so all it's doing is making the map bigger than it should be.
2. Restore the bestowment of Honorary Titles to vanilla methods, and remove the "Appointed" modifiers, as they seem highly buggy as it is.