"Of course we want to win every game, but it was a very tough fixture today," Sousa said. "Burnley played very well and defended in numbers. The first and second phase of our play was good, but we didn't create as many chances as we have done in previous weeks.
"The last moment of our offensive organisation wasn't as good as it can be. In previous weeks we have created chances and scored goals. Today, we controlled long spells of the game, the first and second phase in particular, and made good transitions, but didn't create chances. Sometimes football is like that, but we can go up to Burnley and get a result."
Sousa though wasn't happy with referee Tony Bates who he thought was over lenient towards the Clarets. He said: "I don't like to speak too much about the officials, because they have a very tough job, but the referee missed a lot today.
"The last game Fitz Hall broke his nose because of a foul. Everyone saw it, apart from the referee. Today, Emmanuel Ledesma was caught with an elbow and he failed to spot it again. It was one against one and somehow he missed it.
"We need to protect the game and the players are a big part of the game. Without that protection it is tough."
Owen Coyle, with his squad reduced to just seventeen players, was delighted to come through with the game with a draw. "It was hard fought and there weren't too many opportunities in the game," he claimed. "What there were, I thought we had the better of and I felt if anyone was going to score today it was going to be ourselves.
"Chris Eagles had a chance in the second half and Wade Elliott cracked one off the bar in the first half, but with only seventeen players available it is a great result to still be in the cup.
"Wade was terrific playing in one from the right and Christian (Kalvenes) did ever so well after being out for a few months and only a few days training. We had to put on a game against the youth team in midweek, when Steve Davis, Sandy Stewart and myself made up the numbers, to get him a game.
"He's come through today and that will give him a huge boost from that. He will certainly sleep tonight."
Coyle answered the queries on the absence again of Dutch midfielder Remco van der Schaaf. "Remco has been on and off," he said. "He had a little kidney problem and never travelled. We've sent him for a scan, so we await the result of that.
"All in all it was just a tremendous ask for the players again to play out of position, but we showed terrific energy to bounce back from a couple of disappointing results we've had.
"I think we can play a lot better, in terms of how we pass and move the ball, and we can maybe show a bit more guile, but it was a terrific result.
"I didn't want them distracted ahead of Tuesday night and I think they showed real professionalism and we're still in the draw for the next round. The replay is another game, but we are still in the FA Cup and we want to get as far as we can in every competition we enter in to.
"This provides us with an opportunity to progress if we are at our best, and I would hope we have a few fresh faces available when it comes about."