Blind says the Dutch side, who lost to goals from James Forrest and Beram Kayal, should have left Celtic Park with at least a point.
Christian Poulsen hit the post for Ajax in the first half and Thulani Serero missed two great chances before Lasse Schone eventually found the net in added time.
Blind said: "We played a lot of moments of good football and came out to create chances. But Celtic scored two goals that were not really deserved at that moment in the game.
"They are a physical team and we had a little bit of a problem with that. But if you look at the chances, I think for sure we deserved one point here.
"Maybe if we had taken our chances we might have even won."
The defeat leaves Ajax - who host Celtic in Amsterdam on November 6 - bottom of the group with just one point from three games and Blind admits his side are now realistically only targeting a Europa League slot.
"We need to win in Amsterdam if we want to play for the third place," he added.
"We know that and I look forward to it. As for second place, maybe we can look at that if we beat Celtic."