Obviously, there is a general risk to every person at all times for all sorts of crimes. But, here's the deal: an abduction by a stranger is an extremely rare event. It is so rare, in fact, that an abduction of a child is always a huge deal and there is always a massive public interest. All I am saying, is that if LE has enough information, then it would professional of them to put the public's mind at ease.
Not all cases are created equal. When a child disappears, there will be a huge public interest. For that reason alone, it is unprofessional for LE to not have addressed the public in some way pertaining to this case other than a very cryptic (and poorly written) press release about anyone seeing anyone in those clothes. They have, by their own doing and by their own silence, made a bad situation even worse.