You're right, I meant google.com However, using their own .google TLD makes sense the closer I looked at this link after you brought my attention to it. This

You're right, I meant google.com However, using their own .google TLD makes sense the closer I looked at this link after you brought my attention to it. This appears to be a branded and hosted version of a third party learning platform that might be simpler to deliver a whitelabeled expereince. The login experience (either to use your google credentials or create your own account) seems to be the confusing piece. I would not be surprised if this is not a third party piece of software in which case the login screen makes sense.