In thirteen-deity jnanadakini mandala, why is the proportion of all the deities and buddhas the same, including jnanadakini?

The proportion of of the deities and buddhas are the same in the Thirteen-Deity Jnanadakini Mandala because it uses proportion to suggest that there is some sort of order to the universe.

What i think is that it adds loudness for preachers/church choirs. it is also able to hold up a lot of weight without pillars. : )) idek tho