Name a continuity where the Dinobots aren't antagonistic to Optimus and Friends at the start.
That's actually a fair point. But, even if they do end up being on the same side by the end of the series, it's still another beast-character who's a antagonist for (probably) the majority of the show. It still fits the pattern I'm seeing, at least for now.
Honestly, I wouldn't be surprised if EVERYONE ends up teaming up to fight the real villains by the end of the show. The Quintessons or whoever's behind this virtual video game world. It just feels like a natural way for this show to end. With a "raid boss" as it were.
I don't know. I just think it's probably a conscious choice by someone? Either because they actually do have some resentment towards the Beast-Transformers (which I'm halfway exaggerating, but given how strongly some fans feel about this stuff, is potentially a non-zero possibility). Or because they're playing up the "wild emotions" versus "logical reason" theme. Optimus is clearly trying to be the voice of peace and reason here...to the point of self-parody, even in this newest episode. It's possible they're just going for a more subtle "Lord of the Flies" type thing, with everyone reverting to more savage tribal ways. And their Beast alt modes being a visual metaphor representing this regression. That's probably more of what they're going for?
And I guess if they did it the other way around, with all the good guys being Beasts and all the villains being Machines, that would just be...well...Beast Machines all over again. Which I'm not against, but they have done that already, to be fair. Although, it has been longer since they did things that way.