Context is everything here. A 3-1 curveball in the dirt is a bad pitch. An 0-2 curveball in the same location is most likely a good pitch. Just taking a pitch without context and looking at the break, velocity, and location tells us nothing. Consider what the pitcher is trying to accomplish on that pitch, because it's not as simple as saying, 'well obviously it's to get the batter to swing and miss'. What was the pitch location in relation to the targeted delivery spot? What was the pitch location in relation to the current batter's strong or weak areas of the strike zone? I'm not trying to dismiss the author's intent here, I'm simply saying there's a lot of context into each and every pitch that has to be considered, not just the measurable data such as location, break, and velocity. I do think to some degree, a reasonable baseball fan can, with context, judge weather most pitches are 'good' or not. I know if Yo fires a 2-0 fastball right down the middle and the batter swings and misses, I don't say 'great pitch!' just because the batter missed. I'm sure most others don't either.