From Heroes of Might and Magic I to V!

One unpleasant fact really bothers me. Every time, people say the same thing: "Heroes 3 is a mockery of Heroes 2, Heroes 4 is a mockery of the entire series (I understand this, but it's still a great game)," and so on. But let's analyze all the parts (excluding Heroes 4 and In the Wake of Gods) and see how each part is "worse than the previous one." For example, I only see improvement and deepening, not mockery. Because if nothing had changed, we would still be playing a 16-color nightmare with a squeak instead of music! What's your opinion?