I'm assuming the aversion is more about why young anime girls are popping up, not about what animal it is
I'd ask why you /don't/ have an aversion to that?
(yes, "not all anime" etc...)
So I'd ask why that makes you think of sexual consent.
Also, the anime reference is very much intentional at this point; while the source code is open so anyone can change it, the author sells a version for the boring serious types where you can easily change the logo without recompiling the source yourself. Adding the additional bottleneck of having to sync a custom fork or paying out to placate the "serious" people is a great way to get the large corporations to pay a small fee to cover maintenance.