Murray Davidson powered the visitors ahead before they lost Steven Anderson and Chris Millar to early baths. Paul Dummet then levelled the score.
Lennon said: "It is definitely two points dropped. We showed a fantastic tempo from the start and I was disappointed to go one down so early.
"We were on the front foot and created a number of opportunities but their keeper has had some fantastic saves.
"We have to be absolutely ruthless in front of goal and you can't expect to give up chances like that and win games. It was an absolute disservice to the fans not to win a game like that."