Aww, I'm sorry, Zed.

The important thing is that you tried! Perhaps if Grimrot was so eager to see you, that's a sign....?

He might be anxious to swap.
I've actually been spot-checking for Ol' Muddle just because I want to meet him and haven't seen him at all. Not sure if that's connected to PTR instabilities or a long spawn timer in both of their cases.
OH WOW, so because of this post, I went to check on him again. He's up! (And the server's going down.) I didn't expect him to a) have such a large pathing route b) be level 100 and aggressive in a level 30 zone. O_O WELCOME TO THE HINTERLANDS, you poor leveling sots. Is this intentional or something that needs to change?
Anyway, I can confirm that Ol' Muddle charged me from a bit of a distance; is that what Grimrot did to you, Zed? It's normal aggro range, but man, I was not expecting that.