That's not what it says.
It's a table comparing Olive to Vanilla. In the "feature" column there is a row for "Free Software".
It's not saying one is less free than the other. It's saying what you already know: MIT license is not copyleft.
But it’s saying that tailwind isn’t free software because it is MIT licensed. Why doesn’t MIT license count as free software?
> That's not what it says.
That's exactly what it says. There is a big fat in that row as if Tailwind were not Free Software because it is not Copyleft. If he wanted to point that out he could have used a separate row and written " (not copyleft though)" or something like that.