Goals from Trent Sailsbury and Jason Davison inside the first 15 minutes of Tuesday's encounter in Newcastle meant that the UAE were on the back foot from the beginning and were never able to recover.
While the result was a disappointing end to the UAE's campaign, Ali believes that his side can take a number of things from the tournament.
“Playing under pressure every three days against strong teams is a great experience for the players,” Ali explained.
"You need to concentrate in critical moments, especially in the first 15 minutes, at the end of the first half and the start of the second half, but we lost concentration in the first 15 minutes and conceded two goals.
“This is a big lesson and we need to learn you have to concentrate for 90 minutes and mistakes are not acceptable as you lose the game.
“It was a big and important game. A semi-final is not easy to give two goals by mistakes in the first 15 minutes, especially when you are playing against the host team with big fans. It was difficult to come back into the game.
“This affected us a lot, but we tried our best to come back into the game, but it was not easy. Australia won the game because they were the better side.”
The UAE's Asian Cup campaign is not over just yet though, with a clash with Iraq in the third/fourth play-off set for Newcastle on Friday.