Occasionally the new feature's debt is never paid. I'm cleaning up a location which has had this happen 30+ times over 20 years. It resulted in 15+ sightly diff

Occasionally the new feature's debt is never paid. I'm cleaning up a location which has had this happen 30+ times over 20 years. It resulted in 15+ sightly different ways of doing the same thing. Much of this without a function call in sight. I've been splitting functions out of it slowly reducing the 80+ variables into discrete behaviors. It's now unit testable. I'm often asked why can't I add something quickly, pointing to this file is more than enough reason for all but the most important projects to agree to wait. What should I call this if not Technical Debt?