Originally Posted by
MrNarim
You guys don't know what Deus ex Machina means. Deus ex Machina is used in a drama or literature when the plot is resolved by previously unknown power which do not have any connection to previous content, or was not hinted anywhere before.
Tyrande, as a High Priestess of Elune, using power of Elune, is not Deus ex Machina, since you know, you kind of expect priests using power of their gods in fantasy. The same goes to Anduin - he is using the Light and we've seen him doing so since MoP. They are using magic which is typical for them in a new and more powerful way then we've seen before, but it's not Deus ex Machina.
Deus ex Machina would be let's say Tyrande freezing Nathanos in time with chrono magic, since we have never seen Tyrande using temporal magic, or being shown any progression within her story arc towards such skill.