It's easy to make a minimal language that can technically do everything via Turing completeness. That can look elegant until you start writing reptitive or hard to read code with it. Golang "if err" is a classic.
The notion of Turing completeness isn't relevant here, it encompasses almost none of the interesting distinctions between programming languages in practice. And yes, simplicity alone isn't what matters here, or else we'd all be applauding Brainfuck. What matters is strength:weight ratio, or the interesting expressiveness and abstractive power of your language weighed against its surface area.