Adding licorice and nibs in primary

Is there a down side to boiling 1 inch of licorice stick in some water then cooling and adding to primary? Two weeks ago I brewed an Imperial Stout.  I wanted to add 1 inch of licorice stick to the boil but it hadn’t arrived by brew day.  Its fully attenuated now.  I was going to rack to secondary but wonder if I really need to.

Also, any thoughts on adding nibs and vanilla bean to primary?

You’ll be fine. I wouldn’t do a secondary if I were in your situation.