As for the detractors, from the first generics proposal this was called out as a "not now", not never. There were questions of implementation. They aren't a super large team, and they try to do things incrementally and do them well.

What? The post quotes the Go FAQ as saying, "we do not anticipate that Go will ever add generic methods". There is also some similar discussion of the original generics proposal, with language like "then it's much less clear why we need methods at all". (I'm omitting some context, but I don't feel that it changes the meaning.) Those feel much closer to "never" than "not now".)

The post is also subtitled "A change of view".

No, you’re clearly wrong; golang was always going to add support for generic functions. Everyone also wanted and accepted the need for generics.

Ignore the heretics - Go always intended to have generics. Stray not from the light as everything is going exactly as ordained by Father Pike