the crux of whether or not this is extortion isn't just "something I don't like happens". it's not extortion to dislike a business's practice, and it's not extortion to tell your friends about it. it may be distasteful, maybe even shitty (in fact I'd go so far as to say that even while I agree with the idea I really don't like how they did it) but to criminalize what this person said is to criminalize the idea of not doing business with someone because you don't like their actions and is an attack on free speech.