I think the initial vgo discussion and versioned Go modules proposal effectively said "developers expect semver; semver is helpful; Go is officially adopting and requiring semver". At the same time, I think there was also some discussion around "semver alone is not a complete answer". I can see how some of that might have been read as anti-semver, though I suspect that was not the intent.

In any event, it is exciting to see more energy going into the semver spec!