Heroes of sword or magic?

WHAT HAVE YOU SAID?

What’s so sad about it?

As is well known, in Heroes 1 and 2, Magic Castles had exclusively Magic heroes, and Battle Castles had exclusively Battle heroes, and even the guilds were of the same size, so if you didn't hire a non-native hero, there was only one predetermined path of development. But the creatures themselves were completely different in strength. For example, the Warlock has the strongest creatures, while the Human has weak and mediocre ones (yes, fast construction and so on, but that's not important now). Therefore, a Human or a Barbarian couldn't just "easily learn all the same spells" or have enough strength and knowledge to use them effectively, and mass slow and speed spells were separate spells that could be found, or they might not appear in the guild; it's not enough to just choose "earth" after the first chest and visit a hundred buildings on the map (the game also progressed noticeably faster there). At the same time, the Warlock doesn't end up in a situation where he has a bunch of weaklings who are useless against a well-fed Battle hero, because the hero doesn't have dragons or hydras. And in the first part, spells were generally in charges, replenished in the guild, and if you have little knowledge and strength, you won't use them much.
That's why the generalization that "in parts 1-4, a warrior can leisurely learn magic and become powerful" is incorrect, and suggests that the author of the statement has at best launched the game once or twice for ten minutes, taking it from a disk collection of all the parts. In the third part, everything was averaged out, and each Castle was given two types of heroes, and the creatures were made approximately the same for everyone, and by choosing one or another element and wisdom, which even warriors can get with a decent chance, you can get a hundred powerful mass buffs or at least enhance the power of nukes without huge investments in strength.
However, in general, the fourth game's heroes also deviate from the above thesis, as in them, for a warrior, due to the breadth of the branches and the greater effort required to obtain them, it is much more difficult to learn the necessary school of magic. Not to mention that a Castle is definitely needed for this. At least if you are going to learn someone else's magic. And a hero-mage is also much stronger there than in any other part.