well, perfect symmetry will look of if everything is the same. its just like the Nintendo Switch logo (one side would look biger than the other, contrasting colours, blah blah), and the Google logo (a perfect circle makes it look too flat, perfect colour distribution, all colour seperator lines point to the exact middle, blah blah), list just goes on, and having that asymmetry makes a new feel of not the perfectly gemoetrical shapes and lines, and to me, a nice looking icon or logo is better rather than a perfectly geometrical shape