Veronica and Devon had mentioned how much work it took to be able to reach the isles themselves. It’s what led to the plan to infiltrate Hogwarts and kill Dumbledore. Not that removing one of the largest thorns in his side for all his life was a downside. Since Morgana had seemed to plan to stay out of the war, he needed to remove Dumbledore in order to reach the boy. The fact that the perfect weapon against Morgana seemed to land into his lap, was all the more better.