Michael Stewart believes Kilmarnock will be "upset" but disagreed with Derek McInnes over a potential red for Celtic striker Oh for a high challenge on Liam Donnelly.
Killie boss Derek McInnes fumed after the final whistle over the South Korean forwards attempt to regain possession in the second half. Goals from Kyogo Furuhashi and Daizen Maeda and Matt O'Riley's double ensured Celtic need only seven points from their last six matches to retain the Scottish Premiership trophy.
Relegation-threatened Kilmarnock can take encouragement from their performance after McInnes made a double change in the 31st minute, with Liam Donnelly's goal proving a consolation. McInnes took aim at the officials over the Oh incident saying his challenge was similar to Kyle Vassell's against Hibernian earlier this season where he was shown his marching orders following a VAR review. Referee David Dickinson was not urged to review the footage of the incident which frustrated McInnes. Former Hibs and Hearts player Stewart did not agree with the ex-Aberdeen manager.