A lot of scienitsts doubted the neutrino theory in supernova production, because the values would have to be so exact. Fortunately, a supernova detected in 1987 confirmed the theory. You can see references to it here and here.
If sentient life--or ANY life--can be formed JUST from hydrogen and helium (say, in stars themselves) than my argument falls flat. But I doubt anyone thinks there is a strong case for that,anyway.
Next week, we'll go into Coincidence Three--which is almost Coincidence Two-and-a-Half--because it also involves the weak force, but at a different epoch of the cosmos...and ties directly with my comment that my argument depends on evolution.
After that, I may discuss recent speculations about a "weakless" universe and what refutes them.