A 79th-minute penalty from Grant McCann pegged Hull back and earned a point for the Posh.
While conceding that he was disappointed to not come away with the win, Bruce believes that his side deserved no more than a point.
He said: "You're always disappointed to be pegged back in the final few minutes of a match, but in all truth I don't think we deserved anything more than a point.
"We gave away a soft penalty which I have absolutely no complaints about.
"But I can't be too disappointed to be sat third in the league with only goal difference keeping us out of the automatic promotion places."
Hull currently sit in third place in the Championship table.