Yay for drawing conclusions! Sure, they didn't mention what those "core systems" are, but we are all psychics and know exactly what they are keeping the same between games!
Seriously, DA2 and Mass Effect shared "core systems" as well. Both of them had the conversation wheel, which acted exactly the same between games. Let's go even further. Gears of War and Resident Evil 4 "share core systems", because both have the same style of gameplay. You wouldn't say they are both exactly the same, though, nor would you even put them in the same genre.
In short, people need to start shutting the FUCK up with EA hate when we don't have enough info to even know what is going on. Upset over Sim City? Fine, that was a total debacle. Upset with the ME3 ending? I disagree, but at least you are basing it off of something solid rather than "This guy said something that I can twist into being negative, so I will!"
Apologies if anyone takes my remarks personally. I just get tired of gamers basing their reactions to game info based on what company is making the game, rather than what the info itself actually is. Let's face it. If Valve had said Portal 3 and Half Life 3 were "sharing core systems", would you all be complaining that the games were officially doomed?