The way I see it is that you can reduce bugs by increasing the level of abstraction, which in this case means to use things that are more straightforward and less flexible: the ultimate looping-construct is arguably the while-loop, by using a counter to index into the array (if you're working with an array, anyway). But with that flexibility comes more room for error: maybe your increment is wrong, maybe your while-condition is wrong, maybe you inadvertently change the index inside the loop without meaning to, etc. A step over that is to explicitly just say that you want to iterate over each element in the array. You don't get to choose how, but you probably wanted to iterate over it from start to finish anyway. The highest level is a function that encapsulates exactly what you want without having to bother with explicitly iterating over the collection yourself. Now you can't even mess up how you use each member of the array, because that is already handled by the function.

A higher level of abstraction means less flexibility, which means fewer potential things that you can screw up. I don't see how that is a flawed point.