I guess the defining factor is if feelings were hurt, then it was a troll. But feelings get hurt over everything these days, so every time a statement is made on the internet, it's now a troll. Case in point: "If Amy Schumer is Barbie, then Seth Rogen should be Ken," read another of the mean comments. Maybe the Tweet author was saying they would be a good comedic pair, not even referring to the fact they're both whales.