The Bees fought back from 2-0 down to earn the point.
Rodgers said: "Little frustrating we didn't take the three points.
"I thought we were outstanding for 60 minutes of the game. Some of our football was outstanding but just a loss of concentration from a simple thing of a throwing. All of a suddenly it leads to the goal and at 2-1 it can change the momentum of the game.
"Their second was a good goal but from our perspective we can do better. Overall the players gave everything. They are disappointed not to take the three points.
"The performance level for a long period of the game was very good and the two goals came out of nowhere. That is the Premier League, 2-0 is a dangerous scoreline. We will learn from it.
"I can only concentrate on the guys in the building and here. For me it hasn't been a problem, obviously there has been lots of noise around it. The team is very cohesive and worked very well but we are disappointed with the goals."