While semantic styling has been around for quite a while in different shapes and forms, this is essentially the same as inlining all of your styles in a style attribute on every element, albeit just a bit shorter to write.
It's an interesting idea to entertain as a thought, and some utility classes certainly hold value in general, but I don't see how you would ever reasonably want to use this in a project. It has all the same drawbacks as writing inline styles on elements, not to mention the large size.
Say you have a number of views and decide (or a client decides) you want all of the buttons to have a bit more padding. If anything else happens to completely accidentally also use the same padding class you're always left with manually checking every single instance just for a small change like this.
It's an interesting idea to entertain as a thought, and some utility classes certainly hold value in general, but I don't see how you would ever reasonably want to use this in a project. It has all the same drawbacks as writing inline styles on elements, not to mention the large size.
Say you have a number of views and decide (or a client decides) you want all of the buttons to have a bit more padding. If anything else happens to completely accidentally also use the same padding class you're always left with manually checking every single instance just for a small change like this.