That feels like a bit of a hate train on SOMA that’s not really relevant. We often dislike character idiocy, especially when it’s our player. But speaking protagonists can be done well - Dead Space 2 made the move, and even ported it back when they finally did a DS1 remake.

Yeah, the DS1 remake had Isaac talking, and they did it pretty decently because he's not constantly surrounded by people who have answers to questions that Isaac has. The game is still about finding out what happened, and nobody can answer that, so you can't talk about it. You're discovering it with Isaac AND the other survivors. In DS2 you can't really ask all that many questions about unitology, because people don't really know the answers either.

But it would ruin all the interesting stuff about HL2's history discovery. If someone just tells you "Oh yeah, the combine conquered the earth, and now they're using these hybrid soldiers to suppress humanity after their military conquest, and their citadel is slowly expanding an ever more repressed population in this city" that's not nearly as interesting as finding it out. But if Gordon asks, anyone would know the info, because they lived through it. By having a silent protagonist, people can just assume Gordon's been around and knows this stuff, and not magically kidnapped by a supernatural magic guy in a suit who keeps mysteriously following him around. Half the fun in HL2 is figuring out the world, it's a core concept of the game. You learn something for yourself, you figure it out by putting it togehter. Having G-Man spell it out would remove the fun. And having Gordon spell it out for the player would definitely detract from the game too. HL2 really hit that level of natural discovery, and making it optional to the game enjoyment.

Of course, launching it today removes a lot of the fun too, since there will just be 5000 youtubers repeating eachother about the game.