Uh, Leonard's pull-up game has been a part of his arsenal since his time here & Goldsberry spent time here under Pop (in an analytics capacity). So, him making this video (or the previous YouTube creator) isn't surprising.
Doesn't mean it is a case of plagiarism, but maybe just 2 "content creators" having similar points (about his game and skill).
Also, it is hilarious that people, especially on ST, rag on DeRozan/Aldridge for having mid - range "centric" games. Yet, Leonard is a player that relies heavily on that part of the floor too (not to the same degree as the two current Spurs).