Wild that you don't distinguish between error handling and name repetition.

The issue is about "repetition" - a concept that exists on the syntactic level, and is unavoidable in Go.

To put it in a way you may understand, it's when you have to press keys in the same order a lot of times and you get sad.

Repetition at the syntactic level, as you describe here, is, statistically, zero percent of the time spent in any meaningful software project. It, quite literally, doesn't matter.

Time spent by authors typing source code characters into their editor is almost entirely irrelevant. The only thing that matters is the time spent by readers parsing and understanding the source code in the VCS.