I was somewhat suspicious that a probe could perform such a feat, but the article mentioned Avi Loeb, an award winning Harvard scientist [1], the author of the proposal, even went as far as computing required trajectory, ignition etc. so I assumed he had all the necessary data, and it was possible.

1: https://en.wikipedia.org/wiki/Avi_Loeb

I don't think considering his proposal might have damaged NASA's reputation. I also don't think the interstellar object is an alien probe, I just was excited we got a chance at looking at an interstellar object, that may be totally unlike Solar System objects, and possibly far older. Crap?