Have learned enough to understand the movie; this is 100% G5 instead of a transition from G4 to G5, and strongly marked by a desire to break with older lore and unfortunately as seen with the earth ponies and the unicorns the writers will not tone it down. The background is too weakly developed, and it is seen that the animators follow their own path to great joy for us who can find a lot of strange things where it is a bit blank. This is a movie where it is the animators who saved the G5 and created a new beginning than the writers, who in different circumstances could have been a huge mistake.
Thank goodness that the character gallery around Sunny is strong enough to carry the entire movie and reach the audience successfully, as they have overwhelmed everything else that was bad or poorly developed. A little strange that the pegasi was given better treatment than everyone else. The writers were a little too influenced by the present time in 2019-2020 when the US presidential election and the pandemic were going on.
It has been revealed that trailers and pictures have been retouched and manipulated, so we did not get to see what came out before in the movie, especially when Sunny was to become an “alicorn”. It is obvious that Hasbro and others who came to, realized that the movie could go wrong, and thus hope to “surprise” the viewers. They could have spared themselves the trouble, the characters in what make up the Mane 5 are enough in themselves.
Ironically, the Mane 5 saved the G5 as much as saving the Ponykind by returning the magic to them. It is they, not the background of the movie, that are most important. A contrast from the 2017 movie, where it was the background that had come to the fore.