Kearney was disappointed with the play-the-ball.
"The interpretation of the play-of-the-ball is an ongoing issue. It was awfully slow in places and the Australians did that better than us. We got an indication beforehand of what was and wasn't allowed but we're still confused. We tried to match them in the second half and managed to reduce those opportunities where teams have to stun an opposition by getting through it quickly.
"You've got to do what you can get away with. It's a good gauge for next time if we're in that position with the same ref [Brit Phil Bentham]."
Kearney also lamented his side's inability to translate attack to points.
"We got within striking distance at times, particularly in the second half. We're good enough, we could have challenged. But at one point in the first half, we completed about one in six sets, which is unacceptable.
"In the second half, we kept on a lot more pressure in possession. We have guys who can cause just as much damage as Billy Slater, Cameron Smith and Johnathan Thurston. We just need to get to the end of sets and produce good kicks for territory."