It's smothering the candle with a firehose. It's a very destructive solution for which avenues have been paved before-hand to solve such problems. Did it work? Yes. To fix one small problem (malfunctioning WiFi) he rendered himself incapable of doing other things (use Microsoft compatible software, and, no, I'm not including WINE).

In the end, if his purpose was to install Ubuntu, then good for him. However, I wouldn't give it as general advice out of voiding their warranty alone.