Agreed. Many people don't look far below the surface, so if the trappings are familiar, they don't get peeved even though the underlying reality is different. 4e didn't preserve the trappings, hence the pained shrieks. Cheese got moved.
Which isn't totally invalid of a complaint, but the complaints about 4e got way out of proportion to the actual underlying issues. Which there were--4e was half-baked in a lot of ways to be sure.