He pointed to a lack of creativity and freshness about the team after a stint of four matches in nine days.
Roberto Soldado was just off target on two occasions, Paulinho's goalbound shot was blocked and Christian Eriksen tested Julian Speroni but Palace created the better opportunities, struck the crossbar and Hugo Lloris made fine saves to deny Jason Puncheon and Scott Dann.
“I’m disappointed and frustrated but at the end I think the result is fair,” said Mauricio.
“We created some chances but it was difficult. Crystal Palace are a physical team and we’re not fresh, we had a lack of creativity up front and it wasn’t easy for us.
“I’m disappointed with the result because here, we always want to get the three points. This was a good chance for us to get three points but it was difficult.
“We’ve played four games in nine games, had one day less (to prepare) after Chelsea. This is the schedule and we have to accept it but it’s reality.”