This is something that it seems some Go people just don't "believe" in my experience, that for some people that letter in that context is not mentally populated immediately.

It's honestly a shame because it seems like Go is a good language but with such extremely opinionated style that is so unpleasant (not just single letters but other things stuff about tests aren't supposed to ever have helpers or test frameworks) feels aggressively bad enough to basically ruin the language for me.