?? There's roughly BTC6.8k more on the market than there was on the 22nd, and there has been consistently more during that time frame. I agree the walls are being placed further away, but they're still there AND they're increasing.
This makes sense - the wall spacing ought to be somewhat proportional to the price. Putting a wall a dollar away from the market at $45 doesn't give nearly as much buffer as it did at $15.