Since I'm German and pay an extra fee with every storage medium for it I sure am allowed to do just that. Even though they try to make it absurdly hard for you to do so.
I can even share it with friends and family, just not put it out for the whole world to use it.
They didn't add all that many units, two per race. But they did have a great impact on the game (mostly).
Also, new campaigns for each race was awesome. The level editor not only brought many fun custom maps (I still think about that weird 300 map I played when I was 16), but ensured longevity of the game until this day by enabling new maps to be played in regular games.
I miss getting all this stuff with a game or expansion too.
That's fine. I prefer tea mixtures most of the time anyways.
Mixing green tea (like Gunpowder) with some moroccan mint (add sugar to your liking) tastest mighty fine. And the mint grows just fine in a pot on the balkony.
Wild.