The Championship club opened up a two-goal lead at the Reebok Stadium thanks to strikes from Chung-Yong Lee and Marvin Sordell but the Black Cats came back to force a draw.
Freedman was disappointed to see the Trotters throw away their advantage but feels there were also plenty of positives in their display.
"From a 2-0 lead I'm disappointed but overall I'm thrilled with the result because I thought we showed great commitment and desire at the end to defend for our lives," he said.
"For the first 60 minutes I thought we controlled the game and we played a style of football I like to play.
"Overall, it was the old cliche of a game of two halves.
"It was a great tie to watch and in the end we had to dig in and defend - and that was part of the game."