Hoh? Then what about this piece of evidence?
This image is drawn by the man who drew the artwork for the Umineko remakes to be distributed alongside the second outlet.
As the remakes where overseen by Ryukishi himself, he would not allow drastic changes to a character,
thus I conclude that while the size may have been somewhat exagarrated due to fanservice reasons, they where never non-existant!
And if one where to argue that the remake's looks are not authentic enough,
then Ryukishi's artwork is too terrible to argue for one sider or another,
and thus one would need to go to the closest well drawn thing, which is the remakes
or else it'd cause a STALEMATEEEEEE!!
... Ever wondered how strange it seems to other people when they randomly trip over a multi-colored Umineko conversation?