T-shirts vs. Shirts

In an IT lesson?
Well, what can I say here? If you think that randomness in Heroes plays a smaller role than placing a skeleton in a forest, then I can only advise you to play longer.

In the same Heroes, for example, mages can find both gems and gold in a leprechaun's garden. Is it necessary to say that this significantly changes the game?

No, it isn't. I doubt anyone seriously builds an entire strategy on whether gems will appear in the leprechaun's garden in the first week, and loses the game because they can't build a dwelling earlier. And your analogy is

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. Many hardcore things, like clearing the map with a stack of sprites or two riders, and even the final battle between the main heroes, would be impossible to do if there was the same Korean-style miss system.