[Gutierrez7]

Interesting video.

Officiating is all about angles. The camera/fan has one angle;the players have their angle; the coaches have another; the officials have yet another angle.

The camera/fan angle shows a common foul on R21, "push". Therefore, Dead ball, secondary contact may be ruled incidental.

My guess (which officials should never do, but you asked for a possible explanation) appears the Trail official's angle may have not seen the push from R21 and thus only sees W4 illegally contacting R25. Just because there is a loose ball, does not allow players to contact other players illegally. Jumping on a player who has the right to a spot on the floor, if obtained legally is either a common foul or intentional foul, based on severity of contact ruled by the official.

Hopefully that helps. The next time you are enjoying the game and see something from your angle, ask yourself what angle do the officials have. We hope they "move to improve" and get the calls right.