Saints outplayed Dunfermline during the first half and created the better chances throughout The home side needed Paul Gallacher's penalty save from Steven Thompson to keep the scores level.
McIntyre said: "We can definitely pass the ball better. That's one thing we never did well, pass the ball. We are a better footballing side than what we showed, but you have got to give a lot of credit to St Mirren."
He added: "I thought they passed the ball really well and pressed the game very well. Their shape was giving us a wee bit of a problem. We made a couple of changes and I think the substitutions gave us impetus. We looked more of a threat."
The former Dundee United and Kilmarnock striker added: "I told the players this is a learning curve. You have got to learn quick because it's good sides, better players you are up against; quicker, stronger.
"But we are a good side and we can play much better. Their workrate was excellent. As long as they keep working hard, we know we can play better football. But a point is a good start."
St Mirren manager Danny Lennon was happy with the way debutants Tesselaar, Thompson, Gary Teale and Nigel Hasselbaink performed.
"I thought they did terrific," Lennon said. "They are good football players and good football players can go and settle in anywhere.
"Young Nigel has still got to learn a great deal about the game when he is out of possession but he certainly lights it up when he has it. He was terrific at running at people second half.
"Gary Teale always has that bit of quality. Steven Thompson was terrific at leading the line."