Quote: "It didn't seem to hurt their development."
A version of post hoc ergo propter hoc. Maybe it hurt their development, maybe it didn't. We'll never know for sure.
Post hoc ergo propter hoc--"after this, therefore because of this." Also commonly known as faulty causality.
They played in high school, then they went on to be elite international players; therefore, playing in high school helped them to reach that level--was not my conclusion.
They played in high school, then they went on to be elite international players; therefore, playing in high school did not hurt their development too much--note that phrase--to achieve that level...THAT was my observation, and I stand by the logic.
