ngl that logo is unexpected (unnecessary?) to say the least...
Oh, come on, that’s just the typical anime/manga style. You criticism applies equally to any software which has an attractive person as its icon as that would supernormally “hack” your brain as well. I see nothing about that drawing that is confusing.
Sounds like this fits with any kind of shape, color or combination of those (read as: logo) in any README.md that has one ... I wouldn't interpret too much into it.