I don't like the sharp corners either and I fully support the modifications in the article, but to be completely fair to the design, if your wrists are digging into the corners you're at the wrong angle. If you're habitually typing with bent wrists you're going to have problems. The "butterfly" keyboard was also (famously) terrible, but the newer ones, especially with the proper inverted-T cursor keys, are fine (for a laptop) imho. My ideal laptop keyboard would be split and orthogonal, but that's far too weird to make it anywhere close to mass production.