There are other things, such as General Hux, who according to TFA and TLJ is the third highest ranking person in the First Order, after Snoke and Kylo Ren, a fact which is confirmed in the comics. Then suddenly in Rise of Skywalker, there's General Pryde, who outranks Hux and has been around since the First Order's Imperial days. You need the Visual Dictionary to explain things there.
I don’t need the VD to see that Hux was competing with Ren for Snoke’s attention and definitively lost when Ren killed Snoke. It’s obvious from their history that Kylo would’ve looked for someone to outrank Hux, and the VD merely clarifies where exactly Pryde came from.
And we have seen evidence of the decrees of the Story Group being walked back after negative backlash from the fans, like the infamous incident in 2015 when they tried saying that Ewoks should not be called Ewoks anymore but rather "Endor natives."
Where can I find the Story Group comments for context? Presumably Ewoks are not the only ”Endor natives”, so this sounds more like a stylistic alternative than any kind of walk-back of established terminology.