There's alot of so called flip or colour shift paints that hardly seem to do a thing - when compared to the more obvious flips.
Reflex purple & Reflex spice are very obvious, but the 'white' Mazoria flips from the Toyota FT86 concepts hardly seem to change at all, yet they're still classed as flip paint.
Alternatively, there's non flip paint that does seem to change a little, such a K2RED from the Mazda Crossport. It's dark-ish red, but spray a car with it, look at it rotate in your garage and it it looks more like bright orange in places - a very cool colour.
Try spraying the lesser flips on cars with very curvy bodies, this'll help the 'flip' come out. I got a Afla 8c in flip flop yellow and it suits it really well, subtle, but different.
I agree with the OP though, typical Polyphony really (what does everyone expect though, we should really be expecting this by now) - add it to the never ending "WTF have Polyphony done that for" list.