The Bees' appeals for a spot kick were waved away after a tackle from behind on Mark Hughes, while Micah Hyde hit the post. Paul Morgan's soft own-goal cancelled out Ricky Sappleton's early strike and helped extend Barnet's unbeaten run to six games.
Hendon said: "How he didn't give a penalty I just don't know. Their player was between him and Hughes and clearly shoved him down, it was an obvious penalty, but sometimes you just don't get these things.
"I'm happy with a point and perhaps we could have taken all three. It wasn't the prettiest of games, but Macc have had a poor start to the season and they were fighting every inch of the way and I'm glad we matched them.
"We didn't have much luck in the first half, especially with a penalty and then hitting the woodwork, but I don't think it's fair to say that our luck turned with the own-goal because if Morgan hadn't have got a head on it our forwards were queuing up to put it in."