I thought the reason why the modern "flat" movement existed at all was because text doesn't appear on a "regular" surface; its on a computer screen. The idea was that designers should be honest in their use of computer designs rather than emulate the real world, thus the rejection of skuemorphic design. Putting your button on a brick-like background doesnt make the button any more "real", as the surface exists only in the computer screen and thus doesnt actually have the raised edges, the difference in texture from the mortar, the weathering of the brick work etc.

It has more to do with a harking back to the principles of the swiss international typographic style and the bauhaus principles; honesty in design, modernism.

blah blah blah I don't know what my point is.