Jab by the defender on the jump shooter (non-contact)

[tlynch]

Unsportsmanlike conduct is behavior or an act that is unbecoming to a fair,
ethical and honorable individual.

I do not see how anyone can think that attempting to distracting a shooter by faking harmful contact is not unsportsmanlike conduct. It is not ethical, fair, or honorable to distract a player in the act of shooting by pretending to harm them.

For a minor violation I would agree that a warning might be well suited for a first time offense, but calling a T is not beyond the intention of the rules.