If I use 1.4.3 compiled by him, I do not need to add in the boot argument. My computer is able to wake up from sleep without any issue. The only thing missing is HDMI audio output as what he said in his post.
If I use the official 1.4.2, it freeze my computer when wake up from sleep. Adding the boot argument does not help too.
Thus, I am taking his unofficial 1.4.3 (he did attach his compiled version in his post) as my temporary workaround, while waiting for the new release from the AppleAlc maintainer.