I mean it's a great idea and all and probably not original, but it needs billions if not more in new spacecraft that can travel 3-4x as far as the furthest human-made object is (Voyagers) in a reasonable time, a scalable launch system that can launch the probes (1000x payload + fuel with the delta-V required to get there), probes that go to the destination, and a new almost interstellar communications network to get the data and commands there and back again.

Basically your idea would be the biggest, most expensive and longest undertaking in space exploration system, ever. I can see why investors would be a bit hesitant about that.