Johnson said: "I'll talk through the goal but I won't give the headline because the headline is the performance and our lads in the second half but nobody understands these offside rules, especially these referees.
"They seem to make it up as they go along. I think both players are interfering with play.
"The referee said he played on because the linesman thought one player (Antonio) was offside and not the other lad. How can they be telepathic? If two players are running at the ball, for me, that's interfering.
"I was very proud of my players but I was disappointed with our vice-captain who got sent off.
"We can't afford to go down to 10 men, he's apologised to the lads and we've accepted that but then the 10 men had to give 10 per cent extra in the second half. They gave that and more.
"We still created some chances and we kept the ball well - we didn't just stand in our penalty area waiting for them to lump it."