So the errors or "errors" that TPTB indicate only ...matter depending the various time-space coordinates, and his likes, or dislikes, at any given point within that 4-dimensional array.
Sounds legit.
You'll have to ask Shelby. My guess is he'll tell you before you get a chance to ask, but my point is that Evan runs away when he can't explain a failure. Shen actually argued with Shelby for days, but then again, Shen knew he was right and didn't need to run.