I have seen non-hardcoe gamers struggle ot figure out what they are doing in oblivion (aka not know what to do/where to go for a quest) simply cause it involved simple puzzle solving or the quest marker was removed for that bit. THis is the audience that makes up alot of sales, if the game cannot be approached by these people it WILL be marked as a badly designed game.
Sadly, this is true. Despite the "GO THE [censored] OVER HERE ARROW" on the compass, I've seen plenty of casuals still get lost and blame the game for it rather than their own ineptitude.
Now, imagine if you will, these casual players are tomorrow's game critics. Any of us know that bad reviews lead to bad sales, so in order to keep up sales, we have to cater to the general audience's needs. Sure our more hardcoe base won't complain if we keep things relatively the same and only improve aspects they want improved, but they're usually not the biggest group with the most money. So, in most cases, you have to make a decision between old fans, and money. And seeing as Bethesda is basically a company first, you can see why they're choosing to cater to more of the casual crowd. As much as we hate it, it's only helping them stay alive even longer, which is a good thing in my books.
Who knows? Maybe one day Bethesda will go back to their roots and make a game as complex as Daggerfall was. Or at least something that will cater to all audiences. But until then, we may just have to sit through the casualization of the Elder Scrolls as a franchise patiently.