When the tape of this entire 714 run is finally released for sale or whatever, there will be roughly one shot about every 3-4 racks (likely around +\- 10 shots during the entire run) that most of us will watch and say wow, that ball really should not have gone in. That may indeed also be the case if Schmidt ever releases the video of his entire run.
However, if Jayson is providing commentary during this run, I also assure you he may likely comment that he thought there could be a chance that ball might not drop, but he knew exactly how much margin of error he had to work with, which is indeed true.
Many of those marginal shots were hit at pocket speed, which most of us know, particularly on a table with new cloth, provides maximum forgiveness. I think we can all agree that Jayson took full advantage of the table he was playing on!
I think knowing how to exploit your environment to best advantage is a talent every good pool player should have.
Lou Figueroa