Swans manager Michael Laudrup, who made seven changes to the team for their trip to Anfield, witnessed his side concede five goals yesterday.
"I've played a lot of games in my career already but this is probably the worst," the South Wales Evening Post quotes Vorm as saying. "As a team you win and lose with each other.
"You have the privilege to play at Anfield against Liverpool in front of their amazing supporters, on a nice pitch, in good conditions, but if you play like this then you don't deserve to play at Anfield.
"We showed this year what we are capable of against the big teams but today our mentality was so poor. I hope it's just an accident because we could have lost 10-0. If you play like that even against smaller clubs we will get beat."
Swansea switch their focus to the League Cup final against Bradford City this weekend.