I'm cool with the response. It shows a "mature" middle-aged man, who sees the bigger picture. The fact of the matter.....neither of these men will be going out of their ways to look for each other, for a face-to-face. In the event that does happen, Shkreli would be quick to back down (people like him aren't built for street beef)
If confronted face to face, and provoked, I do think Ghost would put hands on him.....which I think for some odd reason Shkreli wants. I can see him crying victim, and trying to detract from the bad business practices/legal troubles he is in the limelight for.