Their rendering handling seems to be a lot better than gofiber's[1] which downloads nearly 1,000 packages and sadly that ruled it out as a viable framework when I was looking for web frameworks to use.
I ended up having to teach the vendor of the tool about go mod.
But if you are publishing a “release” I personally think it is good to tidy that up. Even just to prevent misconceptions. No reason to preserve ancient versions and especially failed library experiments.