I'm not sure I understand your reasoning. Assuming they run a profitable business, telling them that they should change their business model because you don't like ads is like arguing that Nike should charge less because their shoes don't cost $90 to manufacture. You can argue until you are blue in the face about why something shouldn't be the way it is, but it won't change the fact that despite your pleas to the contrary (and perhaps intuition), that IS the way it is.

My reasoning is that people can easily disable ads and there is no way for them to stop people. To rely on something that is at the control of the end user is just going to be bad for their business in the long run.