O'Connor's comment formed part of a stinging attack on the way Leicester's out-of-favour half-backs Toby Flood and Ben Youngs have been treated by England's interim coach Stuart Lancaster.
Flood has dropped behind Farrell and Charlie Hodgson in England's fly-half pecking order and will not be involved in Sunday's Six Nations game against France.
Youngs, who has been struggling for form, is expected to be on the England bench in Paris but he has lost the starting scrum-half jersey to Lee Dickson.
Furious O'Connor claimed Lancaster's interim management team are not interested in creative players and that England are wasting their best attacking threats.
But Farrell insisted England's new-look side proved against World Cup semi-finalists Wales that they are prepared to take on the best in the world.
"He is entitled to his own opinion. We have our own views. We are excited about the way we are playing at the minute," Farrell said.
"The way we played against Wales was a massive step in the right direction for us and we all thought that.
"It was still disappointing to lose a game when we created quite a few chances but we are massively excited about the way we are going and I hope we can build on that.
"I don't see how else you go into a rugby game (but trying to win it). I don't think I have ever had a mindset to just avoid defeat otherwise you don't play how you want to do.
"The way we played the game against Wales the other week proved that."
England struggled to showcase Lancaster's attacking gameplan as they battled to away wins against Scotland and Italy, with Hodgson scoring a charge-down try in each game.
But with Farrell impressive at fly-half, England turned in a more encouraging offensive performance in their 19-12 defeat to Wales two weekends ago.
Dickson, Manu Tuilagi and Ben Morgan all came into the starting XV and injected a pace and tempo into England's attacking game that had been missing.
"We have got brilliant players all over the field and we are using them right at the minute, we just need to finish our chances," Farrell said.
"We are going in the right direction. It is coming.
"There is a structure in place but it is a structure which allows you to be yourself and play the way you play.
"We have got massive belief in what we are trying to do. Every game we have got better as a team."
Youngs and Flood, who were the starting half-backs in England's Six Nations title-winning campaign last year, both suffered injuries following the World Cup.
Youngs has struggled to regain his form, admitting he has lost the instinctive edge that saw him make such an impact when he emerged on the Test stage two years ago.
Flood, meanwhile, returned from a knee injury to feature off the bench against Wales but was released back to Leicester yesterday, with Hodgson set to be included among the replacements in Paris after overcoming a finger injury.
Leicester have decided not to use Flood in Saturday's LV= Cup semi-final, giving him a weekend off and starting with George Ford against Bath.
O'Connor claimed England's handling of the Leicester pair had contributed to an unnecessary "self-doubt" in both players.
"We consistently score the most tries in the Premiership because of those two blokes," O'Connor told the Leicester Mercury.
"They just provide the rest of the team with so many opportunities.
"But the powers-that-be at England have not fully appreciated what they can offer a team.
"England don't want creative players, they are just trying not to lose.
"There is nothing I have seen so far (in the Six Nations) that indicates England want to go out and beat teams."
O'Connor's criticism of England's attacking game stretches beyond their treatment of Flood and Young, with the Australian claiming Lancaster and assistant coach Andy Farrell are wasting their best attacking threats.
"Chris Ashton, Ben Foden, Toby Flood and Ben Youngs have won England every big game they have won in the last 18 months against the good sides," O'Connor said.
"At the moment, you wouldn't know that Ashton and Foden are on the field.
"Those guys, along with Manu Tuilagi, are as good a back line as there is anywhere in the world but they never see the ball. That is an issue for the RFU to address.
"If you are talking about building a side for the World Cup in 2015, you have to go out and play."
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