I did test it with several other fonts and the same results occurred. I don’t think the smoothing is baked into the font though, because I can use a program like Photoshop or Paint.NET, disable anti aliasing, and see the expected result.
I don’t think the problem is with the sampler filter (ie, point), I think it’s with whatever generates the texture for the spritefont. I think it’s doing the smoothing right there… and I’m not sure why, or how to disable that.