Heroes 6 - Discussion

In the 5th installment, a new system was introduced: initiative, unit movement range was added, and each race received specializations.

That's interesting. Actually, in the 3rd game, "speed" is responsible for initiative, just like in the 4th. The only difference is that in the 3rd game, two indicators (action speed and movement) are combined into one, while in the 4th, they are separated. There's nothing new in the 5th game in this regard.
Movement range? Here, 50% is just cosmetic and for convenience, and 50% is a novelty.
"Specializations for each race" - the 4th game also had them. Each race has its own magic, for example. Necromancers, in general, have always had their own specialization throughout the series. So, it's not quite accurate to call all of this new. It's just a development of existing ideas.

Dwarves with elves - Where have you seen that before? - In Heroes. Centaurs in forests - Where have you seen that before? - In Heroes...

When an author creates their own world, they have the right to put anyone and anything anywhere. If they can explain it in a clear and understandable way, then it doesn't bother anyone.

The 5th installment gave Heroes a new lease on life. The game was revitalized with new colors.

O_o Well, they re-released the game. And they did a good job. But it doesn't warrant such grand statements.

Many fans don't like the plot of the 5th Heroes game. And they're wrong. The main problem with the Russian version is the localization.

O_O The banality of the plot doesn't depend on the Russian localization, does it?

improved skill/ability system.

This is the only thing that genuinely evokes positive emotions.

So, what's the justification for angels in the castle? It's a mindless borrowing from the 3rd game. Nothing more. Where else do angels fight on equal footing with humans and rank slightly higher than cavalry? It's absurd. Even in my favorite 3rd game, I didn't support the developers' introduction of this unit.
Devils are a different story. All their subordinates are also from Hell (imps, nightmares, and succubi). But angels don't walk the earth, so including them in a human faction doesn't make sense.

It's all quite simple... All other races have a legendary creature, like a titan, dragon, devil, hydra, monster, or phoenix. So, humans should have something to counter them. Otherwise, it would look a bit awkward.