Tyrande has me killing murlocs, and Malfurion just yells stuff about trees during the actual warfront. If Our Lord and Savior, Nathanos Blightcaller can be everywhere at all times, Tyrande and Malfurion can show up ONCE for this.
The whole scenario, as written, is pretty disappointing. Tyrande deserves better, Azshara deserves better, and the players deserve better.
Also: inb4 Tyrande and Malfurion are the Sylvanas and Nathanos of next expansion, having been consumed by rage and their desire for vengeance. Shandris will be Saurfang, and will team up with Baine and Anduin to stop the evil Night Elf warmongers and bring peace to the Horde and Alliance.