I suppose it is nice to know that this won't be rushed to completion right to the end, but I do think that it is silly to have it just sitting there. That being said, I totally understand it in the context of marketing the 50th/likely opening up the parks to full or near-full capacity around that time.
Since I haven't been posting here since I actually rode it in Paris back in 2020, figured I would offer my unsolicited thoughts. It will certainly be a nice addition to World Showcase, but it's more of a solid double than a home run. While it was one of the attractions I was most excited to ride, I was slightly underwhelmed. Still enjoyed it, but my expectations were probably too high.