>Are they safer? Possibly, but they are not as well studied or regulated. According to Time,
>> …their natural sources of color do not necessarily mean that they are safer or free of potentially harmful compounds. Natural sources may be treated with pesticides and herbicides, and are also prone to contamination with bacteria and other pathogens…To strip natural products of these contaminants, manufacturers process them with various solvents—some of which could remain in the final coloring and contribute to negative health effects…[and] it generally takes more natural color than synthetic color to make the same shade in a final food.
I agree with the sentiment that "natural" doesn't imply something is healthy and consumers should be skeptical of it, but all of the objections exist for both naturally derived dyes (eg. beetroot red) and the underlying natural product (eg. beetroots), so it's hard to make a principled argument against allowing the natural label for the latter but not the former.