Because that's how I play games. I read all the notes, books and codex entries just in case I need that knowledge in a conversation or to solve a puzzle. Some of them are quite interesting, too. For example, the codex entry for Emperor Florian is a nice story on its own.
But even that can't save a superficial, bland and boring game like DA:I. It mostly suffers from a dumbed down gameplay, lots and lots of timesinks and an utterly predictable story with a disappointing villain, all set on railroad tracks that don't allow you much freedom to change the outcome.
You and I will have to disagree on the quality of Inquisition. It brought me many hundreds of hours of enjoyment and fun gameplay.
Yes, they over emphasized the exploration so it's super easy to get lost in it and lose track of the main story, yes the main story is relatively short in comparison to the massive amounts of side content and yes the end fight is weak.
But, the main story still took me over 30 hours to get through, which is what ME1 takes for me, and a lot of other games. A full complete playthrough taking 20-30 hours was what used to be expected in games, like KOTOR and KOTOR 2, Mass Effect 1, and so on. So even in just main story content it still had enough content to make it worth the price for me to buy it.
Also, the racial choices and the ability to make decisions throughout the game is something I've always loved about Bioware games. Other companies try to mimic the diverging choices, and I think only the Witcher series matches or is better than Bioware at it. No other game series I've played matched Bioware in their ability to have player choices altering quest paths.
I also love the established lore, and since I went on a media blackout before it came out, a lot of the revelations in the lore hit me like a ton of bricks and I loved every minute of it. And the main villain, while weak at the end, felt totally logical how things ended as they had, which is a leap beyond what ME3's original ending had, which came out of left field, altered the themes developed over a trilogy and essentially broke nearly every promise Bioware made about the ending of ME3 whereas Inquisition's ending's biggest flaw is that it's not as strong as it could've been.
I feel it's a shame you feel so strongly that Inquisition was a bland game, but I personally love it. I love the characters, I love the companions, I think all the Voice Acting is spot on, even both sets of voice actors for the Inquisitor of either gender, and there are characters I love to hate because they are that believable.
I recognize that the team making Dragon Age is very different from the team making Andromeda and the Mass Effect series, but I at least am optimistic about the game, even if I'm not excited or disheartened because....reasons.
All I know about Andromeda is that I know next to nothing about it. Jetpacks, the N7 in the trailer is NOT the protagonist, we're in Andromeda, there'll be the Mako, and some races are returning....and that's about it. There not any room to criticize it because we don't know enough specifics to criticize, and it's irrational to lash out at Bioware in general because of past games, games we all love otherwise we wouldn't even be here on the Bioware game forums.