[supergarfield]

Some laws are much easier to evade than others, and some laws have especially bad side effects when evaded. (A law about e.g. requiring a certain type of government certification before a large construction project can be undertaken, for instance, would be far harder to evade than this one, and "they can just do <x>" would probably be a bad objection)

Using non mainstream sites instead seems like a realistic way people are going to skirt this law, and those are very hard to regulate without other unpleasant side effects on Internet freedom. I think it's a reasonable concern to raise.