OK, the moon has almost circled the earth entirely and no one has pointed this out yet, so I guess it's up to me.

The moon and sun are even more different in relative size than the moon and earth. But if you stand about an earth orbit minus earth radius away from the sun and a moon orbit minus earth radius away from the moon, their apparent size is within a range that includes them looking exactly the same size (since both the earth's and moon's orbits are slightly elliptical, so it varies a bit with either one potentially looking bigger than the others).