But at least they are under the Google organization. Thing is anyone could create an organization, name it something like "googlesomething", use Google logos, and design it in a way that some users might believe it has an official connection.
I think so, but it could be enough for someone to create such an organization, share it on HN for malicious purposes, such as infecting devices, and have it taken down only afterward. I'm not saying that's what happened here, but it does illustrate a potential attack vector.