Bungie and Valve are both staffed by Seattle bug people millenials, hence why the gargoyle in question sounds like a mexican ghetto nigger despite being a Spanish gargoyle. Their exposure to diverse personalities are through pop culture and hollywood.
This is only just barely-tangentially related, but I've been playing a really fun (
very raw early access) game called StarRupture lately (a Satisfactory-like factory builder, except about every hour or so of IRL time a massive fireball cooks the whole fucking planet you're working on, including you if you're not in shelter), and noticed a very peculiar behavior.
The UI, subtitles and audio are all set to English. My machine's locale is English. I'm in the US, and bought the game from the US flavor of the Steam store. One of the characters you can play as (they're all functionally identical and I didn't even bother looking when I launched the new world; just clicked-through, and it defaulted to the chick, because of course it did) announces "necessito aqua" in the most obnoxiously Spanish fucking accent imaginable when she gets thirsty (my main gripe with the game is the fucking survival mechanics; I hate that shit in a factory builder).
Thinking this was a bug (since all her other dialogue is in English, and so is literally everyone else's), I dutifully described the issue on their bug report thingy. To their credit, they were quick to respond, polite, and thanked me for reporting it while commending the attention to detail (specifically since I suggested maybe it was a mis-cued dialogue asset or something that'd gone wonky with their build pipeline), but then ... get this shit. They said it's intentional. They wanted every character to have their own unique, well, "character," and hers is apparently blathering to herself in Spanish even though everyone else around her speaks English and she does too.
This ties into the other annoying thing about the game -- the boring-ass and utterly-predictable "corporations bad, greed bad, military bad, prison bad" rhetoric spewed by the garbage backstory (which thankfully can be completely ignored as it has no (known) relevance to actual gameplay). You're playing as a prisoner "owned" by a corporation working off your debt to them in a dangerous environment in lieu of serving a lengthy prison sentence (this sounds remarkably like Shipbreakers now that I describe it). I'm sure you can imagine the "quality" of the dialogue.
Thank god the game itself is fun or I'd have refunded this shit. Dafuq makes these people like this?
Oh and if you build a regeneration chamber and walk up and activate it, you can just switch characters seamlessly (no resource or time cost, all inventory, attributes and unlocks transfer immediately, etc.). Pick the Engineer class. He still babbles occasionally but at least he's white and only speaks English.