Again, consider 1 the source of the ley lines from DR
2 Consider that Dragons sleeping for centuries under the land is actually a common myth(iirc both Britain and Scotland both have such myths) and Quetzalcoatl, the origin of Kulkan translates as feathered serpent(aka winged)
3 Such dragons are known to only awaken and raise the land for specific, apocalyptic events.
4 that we KNOW a dragon battle is in one Wizards future as well as a Kaiju book event
I don't find it such an alien idea, perhaps little evidence, but that's an intentional thing in 'mystery' books. The overarc in DF is all about mystery and puzzling your way through it. There's plenty of things that we accept as 'factual' that have just as little evidence *cough*Simon*cough*.
Wish ppl would actually study theory and premise itself instead of basing it on sheer perspective.. Because there isn't ANY evidence it's wrong. So your making the same logical leap to decide 'what is' that he's attempting to put as what could be. Neither side in such a platform has an advantage really, but I know it's impossible to na say something into Oblivion, this isn't Merlin starring Sam Neil....
*oh and moving rivers and landscaping is exactly what Woj says Dragons could do, so that part I actually like.