The Foveon sensor is credited as being more "film" like, do to the 3 color layers, I'd propose a Bayer or pseudo random conventional sensor is more "eye" like with individual cones? Are we trying to record what film sees or what the eye sees? Just a thought.
The eye registers one thing which then is processed by the brain to produce a result. The brain affects the "raw" material quite much, white balance the most obvious. When you look at a print there will be a different viewing condition, considerably less contrast in the print than in reality, different perspective, 2D rather than 3D etc and the brain will interpret things differently producing a different result.
This makes it largely meaningless to record the same way the eye does, even if it did it would not necessarily become a truer representation of what the eye-brain saw at the scene. An additional problem is that the eye's "filters" are heavily overlapping so if sensors used the same overlapping there would be issues with noise. It's better to record in a way that suits the current technology and convert to color and see what works.
Personally I think the Foveon sensor is over-hyped, due to too much focus on pixel-peeping. The old well-established bayer array still produces the best all-around result, especially when equipped with an AA filter (so you don't get much pixel-peep artifacts). I rather use a higher resolution bayer filter sensor with more dynamic range than a lower resolution foveon sensor (with higher color resolution) with less dynamic range.
With a bayer array and normal scenes you lose very little luminance resolution, and the lower color resolution matches well the eye/brain property.
Foveon type of sensors will also be difficult to make with photo diodes close to the surface, making them unsuitable for technical wides, or any other small lightweight wide angle lens design. Already today there exists more than one technology to make bayer array pixels with very high fill factor and photo diode much closer to the surface than today. This has not yet found it's way to larger sensors, but I think it will get there. All Foveon designs I've seen seems to have very deep pixels.