Nope...
Those signaling too early to turn later at the following turn, not the first immediate turn, are more dangerous than those who do not signal at all.
Perhaps you misunderstood.
If you're waiting, at an intersection or an opening, for a car on the road to pass by first, and that car starts signaling to make a right turn for example, you assume that car is turning at the same opening or intersection before it gets to you, and you start to pull out onto the road. But if that car does not make any turns and continues on toward you (with the indictor is still flashing because the driver intends to turn at the next turn), you may find that car right on top of you if you have already started to pull out.
Signaling and not turning is just as bad as turning without signaling, if not worse in certain situations like the above !!