True, it is a form of distribution. But I think we should make a difference here.
If we take for example "cgtextures": The author and maintainer of this webside states that the textures he provides are explicitely meant to be used in games.
But because of how computer graphics work, especially realtime-rendering, you always have to include the textures in the game - and I don't know a single game where you can't extract the textures back.
So I think the pure form of redistribution of textures means exactly this; distributing them directly, with the
intention of distributing the textures, and only them.
In any form, like on a website, on a CD, USB-stick, but as a texture collection.
By the way, although I extracted many textures from some games (for personal use, like learning, modding, trying things out), I would never re-use them for own projects - just because I don't know where they come from or which licenses are applied to them. And I think everybody else here would behave in a similar way.
@kaelisebonrai: Don't get me wrong. This is not a contra (does one say this in english?); I think the implications of your statement are those I tried to explain further.
