Yes, the differences are too significant. Perhaps if Heroes 4 had been released under a different name, it would have been named game of the year. But here, the problem of legacy arose. And not only the Heroes series suffered from this. I remember that many criticized subsequent Rainbow Six games for simplifying the gameplay. And what if, instead of Most Wanted, we had received a hardcore game like Toca? But the fact that the hero fights is a good feature. However, it shouldn't have been made so powerful. This created an imbalance, and the developers had to compensate by adding a large number of warriors to the enemy's army in the missions.