You aren't making sense. Level means level with respect to the earth. If I take a plumb-bob and make a line perpendicular to the earth, it will be at a slight angle to an identical plumb-bob a few miles away on a spherical earth. However, on a FE, the 2 plumb-bobs will be exactly parallel.
A hill implies a rise above level. There is no 'hill' on a completely level road but the curvature of th earth would have the same appearance as if there were a hill.
Sorry if I don't make sense, but we are saying the exact same thing. On a RE model there would only appear to be a hill, whereas on a FE there would actually be a hill (in this case of the road shown in the video), but the differences are entirely negligible to a great amount of precision.