While Amerson had his best season as a receiver through September, he was criticized for his play toward the end of the season. "The Hamilton Spectator" described him as "slumping" in October while pointing out his poor yardage per punt return (6.8 yards). The "Calgary Herald" stated that Amerson had "disappeared" over a seven-week period when he caught only 25 passes for 302 yards and no touchdowns, statistics far below those he had set earlier in the season. Despite the slump, Amerson finished with career-high receptions (70), receiving yards (1,166), and touchdowns (six) while finishing second in the CFL for all-purpose yards (2,407). The Tiger-Cats lost to the Winnipeg Blue Bombers 22–20 in the East Division semi-final. Amerson scored a touchdown for the Tiger-Cats, but he later lost 16 yards on a crucial pitch play with 90 seconds left on the game clock. After the failed run, the Blue Bombers received the ball back and kicked a field goal to win the game.