The former Sydney FC and Central Coast goal scorer had his spot kick saved in the 77th minute of what was a vital clash for the Jets who as a result sit in last position on the Group E table.
"Why is everyone pointing the finger at me?" Petrovski said on Thursday.
"Bigger players than me in world football have missed penalties.
"When I came on and earned the penalty, I thought I just had to take it.
"As I moved in, I changed and put my head down.
"I should have kept my head up. People are saying I hit it weakly. OK, I could have blasted it and missed the target. It's happened. It's over, but as far as people blaming me for the defeat, that's wrong."