alt Hacker NewsThere's a big part of me that agrees with your implied conclusion, that it shouldn't matter.
On the other hand, I've found that core decisions like language ecosystem choice can be a good leading indicator of other seemingly unrelated decisions.
When I see someone choose a tool that I think is extremely well suited for a purpose, it makes me curious to see what else we agree on.
The Oven team, the ones who created the Bun runtime, is a good example for me. I think Zig is probably the best compromise out there right now, for my sensibilities. The Oven folks, who chose to use Zig to implement Bun, _also_ made a lot of product decisions I really agree with.
This is one of my assessments/red-flags when interviewing with a company. Their tech stack/choices is a reflection of their engineering culture. If they chose Zig or Rust, I'd want to hear why that was a better choice than using a gc'd language.