Pretty much. And because its used so often you get the result of polarization. You get the people who will support it purely because they assume the "bad people" will hate it (you can see the ones in the thread) and the people that assume its purely agenda-driven and trying to push a message to convert everyone to their way of thinking (you can see a few of those here too)
Generally speaking its just laziness, lack of effort, and lack of ability. There are plenty of movies that have diverse casts and ideas that are quite good, though you will find they rarely tout their diversity as a selling point. It just is. They tout how good their product is, how amazing the story is, how amazing the actors are, and the product generally speaks for itself.
If you have to tell everyone how diverse (or *insert other pandering thing here*) your product is, and that's your big selling point, it generally speaks to a lack of a decent product. Its like how you never have to tell someone if you are a good fighter, or have alot of money, or have a big.... *ahem*..... generally those things speak for themselves without you having to try to convince people.
The folks on the ends of the political horseshoe will keep arguing over this show until they are blue in the face..... everyone else just won't watch it.
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I tried that with Wheel of Time.... hell I watched the entire first season. The first 2-3 episodes were the best part (not that they were good), and it got progressively worse from there until it hit GoT S8 levels of crap.
Maybe this show will turn out different, but if you think that any evidence points to that, then I suggest you avoid Vegas your entire life.