Because it amused me to do so.
I'm certain that you're right about that.10% sounds really high, my impression is that it is far less often. But it's got to depend on where the mage is standing too, so maybe my mobile tactics ensure they hardly ever get the chance.
I've no meaningful experience. I've only hired Cold Iron Wolves, and all I've ever asked of them is that they freeze as many foes as they can. IMO and IME, they do an extremely good job of that. But Vulcan_Urushiol's Wolf is surrounded by a Grizzly, a high level Poison Creeper, and five Ravens, while Sparkle_Plenty shields her Wolf with maxed Decoy and a Valkyrie summoned from "Peace." Chip_Otle has no other minions than Scorch, but he also has never ventured beyond early NM, so he really hasn't been tested.Do you really think the mages can be effective with offensive gear when they have no tank to hide behind?