The current Palace boss said: "People have been criticised for taking it this far but all the while we were in the right.
"There should have been action taken sooner but at least now there is an agreement between the two clubs.
"You cannot put right the disappointment. I just think if it was a bigger club, it would have been dealt with at the time."
Warnock also renewed his attack on Premier League chief executive Richard Scudamore today, calling for him to be sacked over his role in the affair. "I am very bitter about Richard Scudamore at the Premier League because Sheffield United was my dream job," Warnock told Sky Sports News.
"I find it amazing that Richard Scudamore is still in a job at the Premier League. I just find it amazing.
"I think all along if the facts were known it would have been dealt with sooner. It's nice to be able to justify it now the facts have been made."