If you are approaching a turn, you should be driving at a fraction of the speed limit before even approaching the stop line. That seems to suggest that the time frame in which you can safely stop upon seeing a yellow light is correspondingly longer than when going straight at the speed limit.

So if anything, yellow light for turns should be shorter. If you are still in the intersection by the time the light goes red, it is probably because you had to brake hard when you realized you had to yield to someone (i.e. ped on a crosswalk going straight). In this case, you should absolutely get the ticket because all western driving codes expressly forbid entering an intersection unless you can promptly execute your turn without waiting; it is strict liability.

So sure, you go slower through an intersection when turning. But this entirely ignores that you had much more time to stop safely for the yellow light; braking distance is quadratic with speed, so the effect is even more lopsided.