The home favourite had to dig deep to keep hold of his title in a fight far removed from his previous all-action title clashes with Lee Selby and Carl Frampton.
Warrington admitted: “I think there was a lot of expectation after my last two performances, but they’re not all going to be fights of the year.
“Everyone builds it up like it’s going to be a war but I knew he was going to come with that typical Sheffield style.
“There were times when he was holding and grabbing the back of my head. You’ve got to come into a champion’s back-yard and take it off him, and that didn’t happen.”
Warrington said he was eager to put a difficult night behind him and look abroad to secure major unification fights in the months ahead.
He added: “There’s no-one left for me to fight over here. I’ve moved very quickly to the top of the tree and it’s the big fights I need here.
“I don’t want to be coming back here and defending the title against some bloke who works at the car-wash on the York Road.
“If I can get my own way, I’d like to go to America for the memories and the experience.”
Galahad refused to be too down-hearted in defeat, insisting: “It is what it is. Josh was strong and he won it and that’s all that matters.”