"That was one of the worst games we have played this season," said Morrison to the Daily Mirror.
"We have players missing but it you don't start right and don't set the tempo right it happens.
"We have had times when we have played well and not got the three points so we are happy to have it the other way round.
"The manager was ranting and raving at half time. He is not a manager to normally do that but he had some harsh words for us and rightly so.
"He said we were letting ourselves down after the way we have played lately. I agreed with everything he said and I was sitting there nodding my head in approval.
"It is frustrating. I always go out on the pitch to do well - for myself, the manager and especially the fans and when things are not going well then I vent my frustration. That has always been me and I am not changing.
"I was frustrated because compared to how we started last week at QPR we looked like a different side. On top of that I couldn't even do the simple things, and it was getting to me."