You clipped my statement so it is totally out of context. I was specifically referencing the choice of verbiage that called what happened a sucker punch.
How many NHL fights have you witnessed where one of the players has hold of a the other players jersey and keeps them at an arms length while throwing those little rabbit punches often called jersey jabs? It happens all the time and is a staple of NHL fighting. One of those coming at the tail end of a scuffle serious enough to require a ref's interference and shortly after you reach around the ref to yank a chin strap hard enough to pull it loose is in no way shape or form a "sucker punch"
If someone's looking away from you and the active engagement does not involve punching (say... a conflict is dying down and the refs are in the process of separating the two of you) and you punch them, it's a sucker punch.
You can try to turn it into whatever else you want, but it is a sucker punch. Does it have to be hard? Does there have to be a KO? Obviously not, but it is absolutely a sucker punch. If Hathaway, the guy getting punched, says it is a sucker punch, then you, some person not involved in the conflict, can't just go "Uh... no it's not" and think that your word is the final word.