It initially was that. Also the name wasn't meant to stick around forever.
But, out of a sudden, between updates, not even the new website URLs ready?
I don't follow Minetest development that closely anymore, but last time I checked there were no issues or pull requests on their GitHub, nor something official regarding a name change in the forums.
This feels like there are just a bunch of people haphazardly deciding there is a new name now.
I'm not going to search further to find the original discussion, but another user in this thread mentions seeing talk of this about a year ago. I agree that it's not very professional for the new website to be in a less than functional state, but it feels like excitement or decision fatigue may be the culprit, not a rushed process. Then again, it's an open source video game, not everything has to be "professional" all the time. Meanwhile, enjoy this meme from luanti.org:
I’m not going to search further to find the original discussion, but another user in this thread mentions seeing talk of this about a year ago.
There were plenty of those threads and discussions happening during the past few years. This is a constant topic that came up in the forums and sometimes GitHub over and over again.
Yes, and in the last twelve months those discussions clearly accelerated, and that post made it clear the lead/original dev had made their mind up. Which very much negates you saying this was rushed.
Those in open source circles will see through places like GamingOnLinux, Lemmy, Reddit and the official IRC/Discord. Those that don't find out probably are no where near the open source gaming community so it won't really matter.