Scott Parker criticised VAR after Burnley’s comeback ended in defeat.
His team trailed 3-0 inside 34 minutes and faced angry home supporters.
They rallied to score three times and appeared to complete a stunning turnaround.
Officials ruled out a fourth Burnley goal for a marginal offside.
Jaidon Anthony stood a shoulder-width beyond the last defender.
Brentford then struck in stoppage time through Mikkel Damsgaard.
Ashley Barnes seemed to equalise moments later.
VAR disallowed the goal for handball after a long review.
Loud boos followed the final whistle at Turf Moor.
Parker called the decision harsh and spoke of possible injustice.
He praised his players for scoring five times in an hour.
He said the fightback showed their commitment despite the result.
Burnley have not won a home league match since October.
Supporters had earlier directed chants at Parker and the club’s owner.
The manager hopes the second-half display restored some belief.
Brentford’s Keith Andrews accepted the match unfolded in chaotic fashion.
He said his side dominated the first half with speed and conviction.
Tactical changes from Burnley caused problems after the break.
Andrews admitted he would have taken a 4-3 win before kickoff.
He also said he believed the VAR decisions were correct.
