The stalemate put an end to the Welsh outfit's run of three consecutive defeats, and Williams is keen to finish the season strongly following their Capital One Cup triumph.
"People have obviously been looking at our results and saying we have stopped playing," Williams told Sky Sports News. "But we are still working hard and I honestly don't see it that way. We don't see our season as over, far from it.
"My impression is that the team has just been having a bit of a wobble recently, nothing more. I'm not really fussed about what people have been saying but after three losses we needed to stop the rot and we've done that.
"On a different day we could easily have won and I think we showed great character to come back from 2-1. Now we just have to make sure that we finish the season strongly."
Swansea sit ninth in the table.