Ah, interesting. Ok, so looks like that solution is basically to create a single switch rather than have two separate ones.
Basically there are two different scenarios.
Scenario A has only one 14-2 Wire leading to the light (which is what the fan/light LZW36 solves for):
Scenario B has a 14-3 Wire leading to the light (as shown in their diagram):
Their solution would put both the fan and light loads onto one switch along with the line.
Whereas with the solution in this thread puts the fan load on the fan switch, the light load on the light switch, and then split the line into both switches.
Definitely something we can explore in the future as the dual switch option has been brought up a lot!