Okay, I'd really like everyone to read my response to this, because it's important to me.
A lot of people are not great at games. I don't mean they are terrible at them, but they aren't great. They may or may not realize this, but when you get right down to it and see them sit down at a game and start to play, they do pretty well but some stuff just slips by. In RPGs, often that error is a strategic one that you don't immediately get stung by. The poison bites you 10, 20, 30 hours down the road.
I don't know what sort of person you're picturing in your head, but from comments that a lot of people make, I get the feeling you see a moron, a person who doesn't really like games, who isn't enthusiastic about them in the same way that you are. In some cases, this is true. But I've seen hundreds of volunteer and professional testers come and go. Most of them are actually pretty intelligent. They like or love games. They like or love RPGs and have played a bunch of them. They're still not terrific at them. They miss a bunch of things and they make a bunch of mistakes.
Even among hardcore PC RPG fans, there is a wide spectrum of skill, experience, and preference. When I started at Black Isle, I designed a bunch of fights in IWD that only a handful of veteran BG testers could get through. Memorably, I saw a QA tester blow a fuse because a fight in Lower Dorn's Deep was "impossible". When I showed him how I got through it, I started off by having my casters go through six rounds of buffs. "What are you doing?" he asked. "Uh... buffing my party?" This seemed normal to me. DUH YEAH BUFF YOUR PARTY TO HELL AND BACK LOCK AND LOAD PAY ATTENTION FFFFFFFFFF. Despite his high experience with RPGs and Baldur's Gate, he just... never thought of it. The problem was that the entire fight was balanced around a party that was optimally built and lit up like a Christmas tree from stacked buffs.
That's a combat example, but it really applies across the board: conversation details, reputation loss/gain, etc. Some players really do play as hard as they say they will. They stoically accept the consequences of companion death, of a dialogue node they carelessly picked 8 hours ago, of an Ironman combat that is going down the drain. For those players, the ability to turn off the "in case you missed it..." features is important. I get that and would like to support it as much as we can.
But again, just to be clear, a lot of actual players actually need these things. I'm not saying this because players come up to me and say, "Josh, I need this." I'm saying this because I'll talk to a tester (volunteer or pro) with a ton of RPG experience and later watch him or her play remotely. Or I'll pop open a Let's Play on YouTube from an enthusiastic player and watch how things turn out. Sometimes they ace it, sometimes they don't. Either way, what I see on that monitor doesn't lie.