User blog comment:Rupert Giles/Global Navigation Update/@comment-24416108-20141203220432/@comment-25035274-20141203221536

While that would certainly be better than what we have presently, it's still not an optimal solution as it would still look grossly out of place.

With that said, Mr. Giles talks about the possibility of just having it hide when it's not needed, and that seems to me, personally, like a better resolution if they don't want to opt with a smaller size or color customization to match the wiki's design.