And more importantly why would anyone send anything to anywhere?
I never understand the argument people make about probes spreading across galaxies. If we assume they are at least as intelligent as we are, then purposelessly wandering in the universe would be least of their goals.
I can understand if probes have military goals. Like for example to evaluate threats to them. But like us here on earth, and with their technology would be carried out at a technical sophistication we have no remote capabilities of detecting currently.