Most guns tend to be just that, guns. Offensive spells tend to have extoic effects, such as with Eruption of Life, Lightning Storm, Strangelhold, Earth Spikes, and Crevasse. Earth Spikes compared to a Destroyer is pretty damned good, for instnace, being magica, ignoring cover, ignoring elevation, and critically knocking for some range. Geomancy also tends to be more accurate than most warbeast and warjack guns, starting at 6 and going up.
I will note also tone here. You speak as if you represent Circle as a whole. And while trends and list building can be used as citation, I kind of will note that "we find it unfavorable" implies you are speaking on everyone's behalf.
- Baldur1 - POW 13, RNG 10, AOE 3
- Krueger1 - POW 10, RNG 10, 1d6 Electric Leaps
- Krueger2 - POW 10 to-everything, RNG 8, AOE 3-persistent template
- Krueger 2 - POW 13, RNG 10, repositionor
- Krueger2 - POW -, RNG 8, +2 to hit for army or +2 speed for single models.
- Morvahna - POW 13, RNG 10, AOE 3 to everything under template on death
- Mohsar - POW 12, RNG 8, SP8 to everything in spray ond eath
Note the lowest of these are Cassius and Baldur, with FURY 6, making them more accurate than most gun outside of characters and Cygnar. Morvahna, Krueger, and Mohsar are better than anything but Hunters or aiming
Compared to guns of other models, they are actually fairly good. You have to force for it, yes. But you also get the aformentioned utility and cycling. This, I will again admit, doesn't mean they are auto-includes. This means they will be takenw ith casters with the overlapping qualities of good offensive spells and cyclable buffs or debuffs (of which I think Baldur1, Krueger1, and Mohsar do best, Krueger2 just has a lot of good spells). And as I see it, focusing on spellcasting and giving the warlock more vectors to do it, and more opportunities to do it, is what you take the Geomancer for.
Although, this all being said, that it might drag-down the Woldwrath is understandable. Just that I think the rule itself is good, the need of it on a model that seems to be geared at offense is more validly questionable.