"the mc's sprite shouldn't be there because some players might not resemble it, and this in some cases could ruin the experience (this wasn't the case with me because I resemble the sprite a lot)"
Usually for a generic-looking MC I'd agree, but this is one of rare VNs when the MC not only doesn't look white, but looks very black.
...In light of these statistics, who'd get the galls to complain about it without looking hypocrite? Just let the nice game balalnce things a little, girl. I've got nothing against European looking MC, I put up with it without any problem, so I expect people to put up with this perfectly fine Mc as well, period.
Besides, the MC is drawn beautifully, and the way her complexion contrast with the RO is just georgeous and poetic. We don't focibly have to invite others' bs into our head, y'know.