Skinner.meme: “Should we build sensible, small cars that are cheap to buy and drive, dont support speeding, need little parking space and prevent horrific high speed crashes? - No, it would hurt the economy and my penis would fall of driving something with less than 400HP that dosn’t make vroom-vroom noises!”
Yeah, but you can do this in the background without blocking the whole page. In fact you have to go to extra lengths to make it “block” the whole page. Maybe it’s just some css that sets the cursor to the “loading” image, and then ignores mouse clicks for a while, giving the illusion of doing lots of work…