RJH quotes: "In this book, Rees points out that there are many values — the intensity of dark energy, gravity, electromagnetic forces, atomic binding energies, to name just a few — that would, if different by even an extremely small amount, result in a universe that is inhospitable to life as we know it. (In some cases, the universe would have collapsed only moments after creation, resulting in a universe inhospitable for any form of life.) "
Yes, if any of those parameters were different, there would be no life as we know it. Endless such parameters could be mentioned: the permeability of membranes within cells, the valences of electrons which make up complicated molecules, the salinity of the seas, the amount of radiation which penetrates our atmosphere, the mean temperature of the planet, the distance from our planet to the sun, the solar luminosity, the time required for the sun to stabilize and reach the optimum luminosity (mentioned in Ross's video), the placement of our solar system within our galaxy (not too near other bright celestial bodies), the rate of expansion of the universe, the proportion of dark matter in the universe, and so on and so on.
What all that proves is just this: that life is delicate and precarious. It does not prove that anyone other than ourselves wanted life to be here or designed those parameters to bring about just this form of life.
Furthermore, if any of those parameters were different, it would not follow that there would be no life at all. It just wouldn't be life as we know it. That proves nothing about why life as we do know it is here now.