Arsenal had been in control at half-time, leading 2-1 with chances aplenty, before they crumbled to a 4-3 defeat including two own-goals from Alex Song and Laurent Koscielny.
Kean was also pleased that he was able to answer the couple of hundred protestors calling for his head before the kick off.
Kean said: "I have said I was disappointed with that. The most important thing is 99% of the fans didn't demonstrate and hopefully even the 1% that did will go home happy.
"I don't mean to be bullish but I can only reiterate the backing I have had from the owners and the players.
"You don't play like that if you have any type of split or division in the dressing room. We feel the criticism we have had has been a little bit unfair."
Kean said that his half-time team-talk and a change of tactics had helped Rovers turn the match around.
"At half-time I told the lads they were giving them too much respect and needed to get closer to them.
"We really showed what we were all about then, digging in and being very effective on the break.
"I might sound like a broken record but our performances have been good, and last time we were at home, against Everton we should have got all three points."