> This is demonstrably false

Only if you consider Crowley to be the alpha and omega.

Wikipedia cites Brill's New Pauly, which I found a copy of online, and that in turn just cites a German article from the early 20th century. I don't read German and have to stop there, but I do have to wonder how well the assertion is actually supported.

Or you could just reference Wikipedia: https://en.wikipedia.org/wiki/El_(deity) which claims numerous associations between Saturn and El. Or you could conduct an internet search for Saturn El and find a plethora of additional resources that confirm the association between the two.