I think so? Assuming a regular function (a method should do one thing and one thing only) is about ~20 lines, we're looking at ~6 functions (170 lines - 17 comments - about 15 lines of newlines, imports and so on = 130-odd).

Six functions sounds very reasonable to me.

The comment ratio is going to vary heavily depending on the problem the project is trying to solve. If it was a library, I would expect the ratio of comments to go up to 30% or more.

The LOC per file average seems slightly high for my taste but okay.

This sounds normal in go. In go a minimal import (package) is a while directory, not a single file, so it's normal to split packages into smaller files, each file implements a smaller set of features.

Using cloc against the Go source code, I found that it has 934025 loc with 3080 files. This averages to about 300 loc per file. There are 149688 lines of comments, which averages to about 50 per file.

I'd say those ratios are very similar.

I try to keep my files under 100 loc, but I mostly build CRUD applications.