Wall blamed the Wizards' 95-88 loss to the Jazz in Utah on Friday on the referees, pointing out the free throw discrepancy.
"The refs made us lose this game," Wall said. "We fought hard, we gave ourselves a chance but you don't shoot no 31 free throws to 16 the way we attack the basket as a team. That's how I feel about it."
Wall finished with 16 points on 6-of-22 shooting, five assists and four rebounds for the Wizards (46-30), who were at Golden State on Sunday.
Wall has received the second-most technical fouls in the league this season with 15, tied with Oklahoma City Thunder star Russell Westbrook and two behind New Orleans Pelicans big man DeMarcus Cousins.
Under NBA rules, a player or coach is suspended without pay for one game once they receive their 16th technical foul of the season. An additional one-game ban is handed out for every two additional technical fouls after that.