The magic system in Heroes V [Discussion]

And the same spell will be in different schools.

As I understand this phrase:
- we take Blessing.
- it applies to both Haven and Academy.
- i.e., to use it, you need either a Life Magic skill or an Academic skill.
- accordingly, the spell grows in power depending on the skill level (it doesn't matter which one).
- i.e., an Archmage has a clear advantage.
Did I understand correctly?
And now, my opinion:
- it makes sense for the Archmage. But IMHO, it would be better like in the 4th game, when there were class-specific features. In the 3rd game's skill system, the Archmage is somehow not relevant. Out of 200 skills, there will probably be something else interesting besides magic.
- I don't like the general availability of spells. I like the 4th game's system of strict guild differentiation more.
- The game becomes focused on the guild. Too much will depend on random spells. Considering that there are few spells in general, and there will definitely be some spells that are rarely used, everything will depend on luck. It's like in the 3rd game, you get Inferno, and there isn't a single fire spell in your entire guild.