I read that a Scottish man was arrested in Glasgow for carrying a sgian dubh, dirk, and broadsword with his Highland wear.

Criminal Law (Consolidation) (Scotland) Act 1995 Section 49(5)(c) says you can have an article with a blade or point in public if it's part of a national costume.
https://www.legislation.gov.uk/ukpga/1995/39/section/49

I've always heard the law above protects carrying a sgian dubh. But, I've never thought about dirks or broadswords. Regardless of what the written law says (courts can sort that out), I'm interested in whether the average Scot believes carrying a dirk is permitted. If yes, then about about a broadsword?