Good observation. Just another example that "good taste" or "harmony" is also man-made, and that culture (man-made) and the effect of habit tend to enforce these definitions as "true".
The concept and what constitutes deity (God) also changes from culture to culture and from era to era. Only totalitarian minds insist on officially "true" colors, music, taste, and God, because they are protecting their own man-made definition of truth.
Thus, in the former Soviet Union, along with prescribed politically correct thinking, only classical art was considered "true." Modern art was forbidden.
In America it used to be anathema to for women to wear white stockings after a certain time of the year (and it still might be), and in Japan for the longest time only those of ethnic Japanese ancestry could become sumo wrestlers because only the Japanese ethnicity conferred the "dignity" necessary for that calling!
The opposite of that are people who are no less purists by who insist that traffic rules are too restricitrve and that driving on both sides of the street as you will is true freedom, and damn the consequences!
And you have Jews who say Torah was written by God before the world existed, who say that God chose the Jews to convince the world that Yahweh is the only God, and then you have Christians who claim the Jews were wrong and they are right and their triune God is true, and he will convert the world and even most of the Jews eventually and show them their "error," and then you have the Muslims who also want to convert the unbelievers or they will cut off their heads.
It seems to me that man created his God, in his image and character, just the way he would like to be. Is an idealized projection of man that is used to justify what men do.
Actually I thought it was evidence for the the opposite. Why did you come to your conclusion?