I do not want to be the person who always ruins all positivity. But none of those reasons have anything to do with why they do not reply directly. The answer is simple and complex, MONEY and liability. Here is why responding is always a bad idea.
1) it creates gossip and causes in-fighting amongst communities which are cult like. We see this with MMOs [got 40K hours in them so I know personally]. Pissed people will dominate other pissed people to prove their right in their heads = lost sales.
2) them promising something and then not delivering = false advertising. SJWs will always take a piss out of any game, giving them ammunition to torpedo a project is the last thing any company will do.
3) A lot of Larian is owned by Tencent games-30%. China is a large environment for games, making China mad and causing an internal war can loose confidence or have their games black listed. Who knows what angers Winnie the Pooh, so it’s better to not say anything.
4) to moderate all discussions and feedback requires more people. People need to be paid. Larian is not WoW they can’t pay people in store mounts.
TLDR: larian’s policy is not their own. It was forced onto them by the hand of fate.