After updating OpenWRT, I saw that the usual login page was changed.
The new minimal login page is so misleading it made me think for a second that I was under a phishing attack.
As I mentioned above, I thought for a second that the changed login page was a phishing scam. There is nothing in the content of the login page to indicate its affiliation with the OpenWRT router. Just a simple password field.
At the bottom of the login page, the LuCI version details, at the top banner the "router hostname" can be written as before.