In the lead up to the try, back-rower Frank Pritchard ran behind Josh Morris, who impeded Tigers centre Blake Ayshford, before passing to Ben Barba who found an unmarked Wright.
But Marshall was too proud of his side's effort, after fighting back from 12-0 early to send to the game into golden point with a try to Aaron Woods in the 78th minute, to worry about refereeing.
"That's rugby league. It could have gone either way but at the end of the day, they won fair and square. We had our chances to win it but we couldn't," Marshall said. "If [Wright's try] went the other way, they probably would have blown up about it as well. At the end of the day, that's the refs' call, they make that call and we can't control that.
"It was a big effort from the boys ... the character we showed in the second half to come back was great."
The Tigers play the Sydney Roosters at Allianz Stadium next round and Marshall said it was a danger game against a side who beat them 42-28 in June.
"I think it's good that we've got a long week until we play next weekend. We need a bit of recovery, a few of the boys are battered and bruised."
Meanwhile, Newcastle centre Junior Sau has signed with Melbourne for the 2013 NRL season. The New Zealand international will join the Storm on a one-year deal, as a replacement for State of Origin centre Dane Nielsen who is headed to the Warriors next season.
- AAP