SQL isn't immutable, it's always evolving. I find it awkward some of the arguments in the article read like "you couldn't do that before CTE was added". But it

SQL isn't immutable, it's always evolving. I find it awkward some of the arguments in the article read like "you couldn't do that before CTE was added". But it WAS added, so? If you want to fix SQL, contribute to the next version of the standard, or provide example by implementing what you want to see out there.