+1 Fermi Paradox on your observation that alien civilizations probably don’t exist.
The extreme rarity of conditions necessary to sustain life on earth is hardly an argument for the necessity of a Creator. That is a matter of faith. One either believes in a Creator, or one believes that universe sprang forth from nothing and evolved into complex systems. Then one adduces evidence to support his faith.
Unfortunately for creationists, their Creator remains silent and hidden, and the only evidence they have for His existence consists of some very old, unscientific texts and their own sincere faith. Well, that and the fact that nobody can point to specific, reproducible examples of evolution following abiogenesis. One the other hand, those who wish exclude the Creator can point to a geological record that supports a theory of evolution. Abiogenesis remains a problem.
In any case, the argument in this article does not support the existence of a Creator: in an infinitely large universe, any non-zero probability is possible no matter how small the probability.
Who said anything about a creator? Agenda much?