I wouldn't say that Alaric's specialization is weak: during testing, his accelerated army often defeated the undead in just a few turns when fighting Naadir.

I have two comments on this. First, I didn't say that Alaric's specialization is weak in general. He is very weak at the beginning and very strong at the end (Alaric level 16... now all battles are on autopilot.). I really don't like the complicated start (almost all reviews about this point say the same), and then there's a sudden shift in the game's difficulty on the map; the turning point for Alaric is getting level 6-7 creatures. Second, the specialization in a battle with Naadir is easily countered by a general "slow" spell. I would like to see that test where the Castle army defeats the undead in a few turns. My replay (there is no "slow" spell being cast) shows a certain manipulation of the result. There were battles where (usually) the first spell cast was "slow" (which couldn't be removed due to a counterspell), then almost immediately "berserk" was cast on the archangels and "subjugation" on the horses - resulting in a loss in a few turns. Developing a hero's specialization for 30 levels, and then not getting any bonuses from it in the final - is not appealing at all. In this battle, out of all the "light" spells, the most useful one is "antimagic," meaning we are destroying our own hero's specialization with our own hands.

Red flags. I don't know what can be done about this, or if it even needs to be done.

It can be left as is. It's not critical, but I would like a little more aesthetics.

Do you have any suggestions for improvement?

My main suggestion regarding the hero. Either give him some items from the dwarven set (at least a scabbard, a shield) to protect the hero's specialization, or change the specialization itself. Having additional bonuses in the form of "momentum" and "super-sight" are steps in the right direction. How can the Grand Inquisitor Alaric specialize in monks?