Egh, I’m not particular on Ahsoka and Sabine’s falling out either, but it’s instrumental to their relationship in this show, especially Sabine’s decision at the end of 4. Besides, it’s been 10 years. A lot can happen.
I do think that the celebration on Lothal scene should be kept, it introduces the audience to Ezra quickly and will free up the crawl for other details. We’re already asking the audience a lot, assuming they haven’t seen Rebels. Cutting the first two episodes out is gonna strain it.