Atheists, fine-tuned-universe question rewind?

I asked why the universe was exactly right for life to appear and got the response "If it wasn't, we wouldn't be here."
Sorry, I don't get this answer. Does this change the improbability involved?
Update: Is this an appeal to a multiverse?
Update 2: I'm not saying it was a bad answer. Just that I didn't get it and would appreciate an explanation.
Update 3: I'm not saying my life or even human life. Any kind of life.
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