It uses gravitational microlensing to find the distant planets. If it was in the right place and knew where to look, the planet you’re talking about could be seen.
Exactly. It's all about the point of view.
Which means that of the 5000 hits/1000 actual possible planets that there could be 10,000 or 1,000,000, or 100,000,000 that they didn't see.