I agree with the OP except that good old steel provides exactly the same things as long as you can live with a somewhat heavier bike. My steelie is the nicest riding bike I have with the Ti in second place. The reason, though, could be geometry. My Ti is "twitchier" than my steelie.

+1 on Merlinextralight's comment. Mixing Ti and CF doesn't make good sense to me either. Lightspeed was doing it for a while but I think they finally gave it up.