The previous episode wasn't that bad if we ignore how forced it was to make Kion and Rani fall in love out of nowhere with a song, But this episode is so insufferable that it gives me physical discomfort every time I rewatch it, that's how bad it is.
If I have to rescue something positive, is that the scene where Kion and his friends reunite with their families was very nice, moreover, I dare say that maybe the end would not have been so bad if everything had ended after Mufasa disappears from the night sky, I even thought that everything would end there, until I saw that there were still more than 10 minutes left for the episode to end, then I knew that everything was going to go wrong, and it did.
There are plot holes everywhere, I know there was never any strong logic in the show, but the episode reaches ridiculous levels. Let's leave aside that a lioness has strength on par with a hippopotamus or that Kion still has the roar despite giving it up. What makes me despair, is that it makes no sense that Vitani wants to "claim" the position of leader of The Lion Guard and that neither Simba nor Rafiki prevent her from doing so. I can understand it being a temporary guard while Kion and his friends were away, but it doesn't make sense that after they returned she insisted that the guard was hers.
The competition between guards was won by Kion's guard even if Anga lost her challenge, but they conveniently made Besthe lose so that Kion and Vitani could have their own challenge, which at least could have been an interesting battle, but since they didn't even have the budget for it, they resolved it in the most vague way possible. All for what? So that in the end everything would be a long excuse to justify Kion dragging his friends away from their families so he could be with Rani.
Kion becoming king doesn't feel like the climax of his character development, it's just a superficial addition that also destroys the idea that he didn't need to be his sister's equal to be someone in her life. I find it unbelievable that of the multiple endings they could have given the series, they chose the worst way to end it.