Should the starting hero for Necropolis be chosen randomly?

What if we prohibit raising the spellcasting skill above the base level? That is, if a player is offered a choice of skills that includes spellcasting, they must choose a different one. Only when all other skills have been maxed out, and this won't happen before the second month, will they be allowed to raise spellcasting. I think then it won't be possible to gather legions of skeletons. And when there aren't that many skeletons, Galtran's significance will automatically decrease.