"Players very definitely find draws unsatisfying, they like to play to a result, they like to know the outcome. Fans also like for the excitement of extra time," said Agnew.
"Another important aspect is that one of the objectives of the ANZ Premiership is to prepare New Zealand players for international play at pinnacle events, and pinnacle events play to a result. We need to make sure our players have regular rehearsal and practice at being put into those situations so that when it happens in the pinnacle events they are much more ready for it."
Agnew said the extra time has been shortened out of consideration for match scheduling, with any overruns likely to prove particularly disruptive on "Super Sundays" where three matches will be played back-to-back at one venue.
"The shortened time period is also about generating more pressure and ensuring the players are competing and pushing themselves for that entire extra time period," she said.
Teams that come off second best in a tight contest will not go away empty-handed however, with one point awarded for a loss of five goals or fewer (the winning team collects two points).
Another rule variation this year is the introduction of unlimited in-game substitutions, enabling coaches to make changes at any point in the match. Previously, changes were only permitted during quarters in case of injury, which led to at times comical attempts by players to feign injury.
Agnew said the rule application is much the same as it currently stands, but it eliminates the need for players to offer an (unconvincing) explanation for the stoppage.
"There's no doubt we think [faking injuries] is not a great part of that rule, and one of the things we're very keen to see is for coaches as well to be able to have an impact on the game through being able to change players in and out."
The new rules have been applied in all preseason fixtures, including last weekend's warm-up tournament in Otaki, and Agnew said the teams have quickly adapted.