Michael Stewart believes Derek McInnes' red card claim for Oh Hyeon-gyu is wrong but admits he can understand why Kilmarnock are annoyed over decision.
Ange Postecoglou's men battered Killie in a relentless opening 30 minutes in Ayrshire that had the champions four goals to the good and things could have been much worse had they converted from the spot. Kyogo Furuhashi - guilty of missing from 12-yards - started the scoring spree with Daizen Maeda and Matt O'Riley's double putting the visitors in cruise control.
Liam Donnelly grabbed a goal back heading into the break and towards the end of the lunchtime kick-off McInnes felt his side should have been playing against ten men after substitute Oh went in for a high ball with his foot with goalscorer Donnelly. The Killie boss was quick to point out it was similar to the incident that ended with Kyle Vassell getting his marching orders at Hibs.