For many situations, a language will add a lot of complexity that doesn't bring much benefit. In the end, a language's complexity can sometimes be a net detriment to its user.

For example, one might be making an embedded program where all memory is pre-allocated up-front and there's no heap usage. There's not as many opportunities to mess that up than your average program. This is where Zig would shine compared to e.g. Rust whose borrow checker would be helping with less, yet is imposing its usual complexity burden on the programmer.