You're welcome. Since we are talking about newbies and people slightly more experienced than that, I hope this comment gives you some more food for thought.
Also, let us talk about CSS variables. They are incredibly useful, but they don't really makes sense, not yet. I know it is controversial, but read on. I say this because there's no "operation" on them, not yet. CSS has no loops, no if-else, no functions (I'm not counting calc()). So I get this question a lot "but, I can just write them there, right? won't that be easier?" It's like the new shiny gold heels in my wardrobe, it complements my dress fabulously but I could just as easily have worn the dress with another pair. But variables in Sass makes sense. you can just hold a value or you can hold a value and run operations on them. So when you write "You don't need Sass, CSS has variables now." it does not show the whole picture. CSS feels restrictive to a lot of people, which in result makes them want to use frameworks to "just get it over with". Sass can make them learn the fundamentals, which is the whole point of your article.
So my point is, even though general purpose languages can be used to make someone see the programming principles, when you are web programming, CSS and Sass are the easiest choice. And CSS by itself, is not very interesting to programmers who already had a lot of freedom with other languages, which in turn, encourages them to "bootstrap their site to death". Sass can actually make CSS interesting and in turn, they learn how it works, write better code and don't use unnecessary frameworks.
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