I think it should be mentioned that these new armor types could EASILY be considered categories instead of specifics. Cloth armor includes clothing and robes as well as padded armor. You want studded leather? Wow, what do you know, your leather armor has studs on it! Chain shirt? That sounds like half a suit of chainmail that lets you dodge! Etc. Etc. Et al.
I don't know why, but it really gets my goat when people feel that the rule books stifle their creativity by taking out things they wanted or adding in things they didn't. Your creativity is lessened precisely how much you let it be, and not a drop more. I can understand how sick and tired it is hearing "you can houserule it" but it is always true.
The core books are all about what's under the hood at the end of the day, they always have been and they always will. They have just been so kind to offer all these (Sometimes neat, sometimes dorky) faceplates to make the inner workings more or less invisible and so you can have fun without thinking too hard. Don't like the default colors or patterns? Switch them out for your own as it doesn't affect a thing except cater it to your tastes. I think 3.5e was fairly modular on the whole, although it often took quite a bit of time to work those things out. I think 4e is shaping up to be even better for houserulings, as everything fits together MUCH more nicely. Don't like godplate? Call it Adamantine Fullplate.