PORT Adelaide Ken Hinkley has blasted the AFL's score review system for delivering a "monumental mistake" that could have a massive impact on the Power's season.

However, the AFL has backed the decision to approve Adelaide forward Josh Jenkins' match-winning goal, saying there was "no clear evidence beyond reasonable doubt" to overturn the goal umpire's original call.

Hinkley was fuming after Jenkins was paid a goal late in Saturday's Showdown 45 that put the Crows back in front on their way to a three-point victory at Adelaide Oval.

Jenkins told Fox Footy after the game he thought the ball hit the post, but the score review came back as a goal.

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"Let me be really clear right from the start, Adelaide deserved to win, they were the better team in a really close game," Hinkley said.

"But to deal with that last moment, where the player acknowledges it's hit the post and the AFL, in a billion-dollar industry, can wreck seasons for football clubs.

"If I was the AFL, I'd be embarrassed and disappointed in an industry that's so important to so many people.

SCORE REVIEW CONTROVERSY Five talking points

"(The AFL) will come out and say they got it wrong, but the technology should have changed that.

"The technology should have made sure this monumental mistake in a football season shouldn't have appeared."

Hinkley said there would be no point seeking an explanation from the AFL.

WATCH Ken Hinkley's full post-match press conference

"The score review is there to make sure this doesn't happen, and it continues to fail," he said.

"Someone should be accountable for that because I'm accountable for winning and losing.

"It was a great game of footy, but a major failure by the AFL tonight."

The AFL released a statement later on Saturday night, saying the score review official examined all relevant replay angles for 23 seconds and determined there was no clear evidence that warranted overturning the goal umpire's initial decision.

"It is the AFL determination that after accessing all relevant vision this evening, it supported the decision of the reviewer to confirm the goal umpire’s decision of a goal, with no clear evidence beyond reasonable doubt to make an over-rule," the statement concluded.

The Power might not have needed the video review's intervention if vice-captain Ollie Wines converted a chance in the last quarter.

With the Power leading by 10 points, Wines snapped the ball from a set shot, instead of going back and kicking a drop punt, and missed everything.

"It's a moment where you should execute, and Ollie knows that," Hinkley said.

"There will be no-one feeling worse about the outcome than Ollie.

"He plays his guts out every week for us.

"He didn't execute a skill. He knows that, he understands that, he won't work on not getting better at that, it's just a disappointing moment."

The loss could be costly for the Power (12-7) ahead of a tough run home where they take on West Coast (home), Collingwood (away) and Essendon (home).

But Hinkley believes their best is still good enough to make a serious run in the finals.

"We're in pretty good form and we've got a big challenge next week," Hinkley said.

"We've played well enough to deserve where we are and we can still make a fair bit out of this season.

"Any one moment, or moments, in the next six or seven weeks, anything can happen."