Sutton rescued a point at Easter Road with his second goal of the game in stoppage-time after the home team had come from two goals down.
But the Motherwell striker believes the team showed their resolve to rescue a point, and he praised the performances of both Lionel Ainsworth and Iain Vigurs.
"I think we're disappointed in the end, we went two goals up and were playing quite well," Sutton said.
"You want to go and win the game from there. At the same time, when you're two goals up and it goes to 3-2, it's easy to start blaming each other and allow the heads to drop.
"We battled on but you need a piece of magic as well and Iain Vigurs' run before the goal was outstanding, and we got the luck we maybe deserved.
"Lionel was outstanding, his goal and assist were fantastic and we caused them problems.
"I think Lionel scored one of the goals of the season."