(As posted at Guildwars2.com Forum)
The recorded troubles of Tyria began subsequent to the arrival of humans, suggesting that the planet is in fact sentient and/or that the EDs embody that sentience.
Unfortunately you are mistaken. The only reason why the “troubles of Tyria” seems to begin after humans only because humans were the ones who started recording Tyria’s troubles in their history books, scrolls, stones, etc. that were used for educational purposes.
In fact, with the help of the Priory, we have learned that the troubles of Tyria predates humans, a.k.a. the first arrival of the EDs, thus they are determined to excavate whatever information they can find to defeat the dragons.
You drew the wrong conclusion, but you make a good story.