"He's learned a lot of lessons out of it and we're moving on," Maguire said.
"It's about moving forward and we're looking forward to a trip overseas.
"We've got a great opportunity to go to England and we're coming up a very good side in St Helens."
Maguire was careful not to stoke the flames of the story and when asked if the club had mishandled the incident, he said: "I've had all my comments and we've moved on to the next step now."
Maguire said he was happy with Sutton's on-field output and expected him to be firing on all cylinders for round one of the NRL next month.
"[Sutton] had a good hit out ... we were pretty scrappy in that first half right across the park," Maguire said.
"That made it a bit difficult for us in defence.
"When he came off, unfortunately he got sent off for 10 minutes for a holding-down tackle there but they might have scored if he didn't, but he got out there and got in control of the game."
Meanwhile, a handful of injuries to emerging stars blighted the weekend's NRL trials while others put their hand up for round one debuts.
South Sydney back-rower Kyle Turner was hospitalised with a neck injury during the NRL All Stars match while Newcastle's Jalean Feeney and Pat Mata'utia both suffered serious injuries.
Turner left cBus Super Stadium on the Gold Coast with a neck problem after being hit hard in a tackle by Cronulla captain Paul Gallen.
Gallen has been cleared by the NRL match review panel and will not face further punishment.
- AAP