You're kidding right? It's practically in the job description if you want to work at a major game studio in the US today you have to be the most arrogant "go fuck yourself" guy there is. Only difference is, most of the time the PR tell them to smile through clenched teeth. The whole bunch of guys that think they are king shit because they work on a videogame.
Here's the Blizzard staff chatting about the lead for Diablo 2 saying what things he would've changed about D3 in an article.
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Wow, what a bunch of jackasses.
But seriously, I get arrogance is a job requirement, but Diablo III sucked ass compared to II, so that's just ironic as hell.
On a more relevant note, pride in your product is one thing, but refusal to listen to rational complaints from fans is a sure guarantee you'll run a franchise into the ground.
In this case, while the kid in a fridge quest in Fallout 4 was "WTF?", it was one minor discordant note in a game where most of the major stuff didn't defy the lore established from everything that came before it, and Fallout is a very lore based series, given its basis on a divergence from actual history, where several events are precise down to an exact time and date.
In this case, they are defying a precedent that was clearly established since day one, which is that the Brotherhood of Steel was formed in Mariposa Military Base and only later spread elsewhere, and that took several decades to centuries.
While the ghoul kid in a fridge is a WTF moment concerning how ghouls work, it's stupid but forgivable ultimately as a minor one off bit of crap writing. Disregarding a precedent established through the first game and reinforced by everything that came after just for the hell of it is another.
Fallout 3 was criticized for it's divergences, but it least the divergences they made, in all major particulars, are reasonably plausible given the time in which they are stated to have occurred. F76 having the BoS be somewhere at a point in time they could not reasonably be and trying to call it canon makes no sense and is spitting in the face of consistency.