The BB-8 thing for sure. I don’t have an issue with the rest (and I’d also argue for trimming more of the phone call gag, a la Hal’s Legendary version).

I also don’t like the Ackbar stuff. The voice isn’t convincing (though that could be remedied by a better voice actor doing an impression closer to his TFA/TLJ voice), and the ROTJ outfit and mask don’t match. The rotoscoping is mostly okay, but in general I fail to see how it improves anything, unless you really hate Holdo or feel it’s absolutely necessary to hammer home the “there might be a spy” point, none of which I have an issue with (I was surprised to discover that the spy thing wasn’t outright stated as I’d apparently taken it as a given).