Long balls are realistic but its not realistic that the striker wins it everytime. I think there should be a challenge determined by strength as Messi shouldnt be winning long balls over boateng.
Secondly Passing around the back is realistic teams don’t just pass forward cause its entertaining they wait for the right pass. Bazza holds the ball and had 75% possession and scored some very nice goals but its not impossible to defend as i beat him in the counter which happens in so many football games. Bazza holds the ball to open space and wait for the killer pass. However there are those who try and time waste. These players will only not improve at the game and when a player realises and presses high they will lose the ball in bad areas costing them a goal.