Bellular’s Video on the Coreway

In Bellular’s video he mentions that Aman’Thul pulling Y’Shaarj out of the world created the hole in Dornogal that makes up the coreway.

I thought the Well of Eternity was the result of Y’Shaarj being plucked out, in which case that would be located at the Maelstorm rather than Dornogal.

If I have this wrong can someone steer me on track?

Edit - I was wrong, it was not Y’Shaarj! Thank you all for helping me get this right!