The Iron led through a Garry Thompson strike, but were pegged back wtih six minutes to go through Stevenage substitute Darius Charles.
"I think we are better than we were a month ago. It's just the fine lines that are killing us at the moment," said Knill.
"We have got to start turning those draws into wins and if we can do that, then I am sure it will be alright.
"This was a game where we should have been talking about a win. Three points were there for the taking, but once again we have conceded a poor goal after people did not do their jobs.
"I have to say though that I have been delighted with the attitude and commitment of the players."
Knill is looking to continue adding to his squad during the transfer window, despite already adding Connor Jennings, Christian Ribeiro and Josh Walker this month.
Injuries have hit the squad hard, with new signing Jennings the latest to be ruled out after suffering a broken foot in training in his first week at the club.
"We had 13 players on the injury list this week, and were really down to the bare bones. There was no-one else left we could have added to the bench," added Knill.
"We desperately need to try and bring someone in and we are trying to do that. It will not be in time for Tuesday night's home game against Sheffield Wednesday but hopefully we will have one or two of our injured players back for then."
Mark Roberts, caretaker boss of Stevenage, was happy to leave North Lincolnshire with a point.
"We came here and changed our formation to 4-3-3 to try and nullify Scunthorpe, who I think are a good team," he said.
"The wind made conditions difficult but maybe we did allow ourselves to be pushed back a bit too much in the first half.
"We did not come here just for a point but I am pleased to be going home with on which takes us another step to where we hope to be."