Skills for an Inferno hero.

I won't argue about leadership; I meant it in comparison to luck. I never had situations where horses and cerberi didn't reach the enemy line without a speed aura.

Luck is better; there's no arguing about that.

The developers somehow managed to stuff magic not so much for "even Alastor" as for Jezebeth, a specialist in succubi. This is a complete failure. Why do archers need magic? Dugald has ranged attacks.

It's a failure in both cases. For Jezebeth, this magic was also neither fish nor fowl in the scenario; it only spoiled the entire build and speed of completion.
Alastor is a shadow creature; there's no point in spending another branch on magic, as it doesn't affect mass battles anyway.
Just for example. Nazir, a specialist in fire, starts with chaos. Svey, a specialist in lightning, starts with chaos. Faiz, a specialist in beams, starts with darkness. Vlad, a specialist in raising the dead, starts with summoning. Even the lords have corresponding skills. Alastor...

In this regard, the Inferno heroes are the worst – their perks are messed up for Grol (Chaos), Alastor, and Jezebeth (magic), plus Daleb (banned because of machines). You can only play with half of them. For the other factions, 1-2 heroes have messed up perks, and even that is debatable.

Yes, in the end, only 4 heroes start with decent perks. Although, does Marbas really need such a strong "reflection" if he relies on resistance? But starting with defense is still good. Well, Daleb can also be counted; after all, she's a specialist in machines, and if you play as her, you play through machines.

Inferno heroes are disliked in all parts. The recent news about the failure of Heroes 7 and, accordingly, the add-on with the Underworld confirms this.

Even the developers are obsessed with this unimaginable banality of "Good is stronger than evil" and other nonsense. Bias should not exist at all.