I think they are right to be honest. Elder Scrolls has been becoming increasingly dumbed down and simpler even as the technology behind it has increased. It has a huge, explorable, world, but it has little depth, and requires very little from the player to be good at, pretty much anyone who sticks with it for a while is going to become an invincible godling with 90% of the world's wealth stuffed into the cupboards of their collection of huts.
Skyrim LOOKS like a hardcore RPG, but it's really not. It, and Elder Scrolls as a series, are among the "go to" examples for "serious" gamers talking about what casuals and companies catering to them have done to gaming. Elder Scrolls becoming prettier, but having less control and options, with every chapter. Ever since "Daggerfall" people have been complaining as more and more has been stripped away over time.
This is not to say it's a bad game, and yes serious gamers can (and do) appreciate it, including me, but when asked about "Deep RPGs for the computer" this one doesn't usually make my list.
As far as "The Witcher" goes though, I can't really say that's the series I'd use to champion serious hardcore RPGs. This is a series where your combat has been literally dictated by simply clicking your mouse when the pointer changes. "The Witcher 2" (which I never got to run perfectly) made things a little more arbitrary at the beginning and pretty much got it's initial difficulty by throwing you to the wolves without explaining how to use half of what you had (though to be fair if you played the first one this isn't as big a deal). An open world "Witcher" sounds like a lot of fun, but seeing as your unlikely to be able to create your own character and instead be handed "Geralt The Polymath" who will rapidly become as invincible as your typical Skyrim character, and whose advancement will probably continue to be gated (it seems like you have a lot of options, but everything is carefully controlled in terms of what you can take and when).
In short I agree with these guys about Skyrim, but it's like the pot calling the kettle black. It's like the guys who did Nethack dissing ADOM for being a roguelike.
