The Nikon F5 isn't the only film camera with color matrix. The other is the F6 which has a newer and the same 1005 pixel matrix sensor. Many other film cameras have matrix or evaluative metering but not 1005 pixel sensor.
Actually I have found that the F5 matrix meter worked better for slides than negative films. With negative film it tends to try to save the high light which causes underexposure as negative film can take quite a bit of over exposure. But with any metering system the user is very important.