Tony Mowbray felt his side deserved more for their efforts after suffering a first defeat of the season at the hands of Bristol City on Sunday.
Charlie Mulgrew got Rovers off to a great start as he score direct from a corner before goals from Josh Brownhill, Marley Watkins, Famara Diedhiou and Marlon Pack sealed a big win for the hosts.
At 2-1 down, Rovers had to go for it and take gambles, and City picked off the visitors in the late stages to make the scoreline more emphatic.
The scoreline doesn't truly reflect the game though, according to the boss, who felt Rovers were the better side for a large chunk of the game.
“The frustration for us is that we weren’t two or three goals up in the first half which would have been a true reflection," Mowbray said.
“They have some threats, you could feel that first half, but Kasey Palmer’s chance, and Adam Armstrong’s chance you would have backed him to score that. It is what it is and we’ll move on to the next game.
“I think up until their second goal I thought we were fine and could win the game. Yet this time haven’t been on the losing side very often.
“The last 20 minutes in my mind we have to be better, but we had a lot of strikers on the pitch and there is the frustration, the last 20 minutes.
“The first 60 or 70 minutes I thought we were good and deserved more than we got but you have to accept football can be cruel and it was.”