You are right. The War Wizard was even a worse case IMHO, since we probably have more "gish" options already than "arcane-divine hybrids", and thus it's more likely to end up in the book
The War Wizard isn't a Gish at all, not even a little, the War Wizard was just a wizard who learned to serve in the military, but not as melee soldier, but rather as magical artillery, so defence spells to protect himself because on the battlefield he's a top tier target, offensive magic to kill a lot of enemies the basic function of, artillery, and some tactical abilities so he can the most of his abilties on the battle field.
People really misunderstood the function of the War Wizard, it's not another version of the Spellsinger, the Spellsinger brings together skill in weapons with spells in an Elvish artistic, way, the War Wizard doesn't try to be a fighter, he's interested into armies and is designed pragmatically on that function.
Yes Evoker is good at blasting things, but the Evoker isn't designed tactically, isn't designed to serve in military armies, they can do so, but the focus of the Evoker is to study of the Evocation school of magic, the War Wizard studies war (not simply fighting, but war) and the applications of magic to war.
If it gets picked for XGTE I hope it focuses on tactics more.