Attributes were the same in Morrowind and Oblivion, can't remember about Arena or Daggerfall anymore.
Well no the are wasn't, because in Oblivion attributes almost no have impact on skills and only involved in some hardcoded formulas and variables (even there many of such variables was set to zero influence or have such miserable values so don't even have visible impact on gameplay), in Morrowind attributes greatly affect chance of successful using of skills, intelligence was useful not only for mages but also for Enchanters and Alchemist, actually in Morrowind beginner mages has really hard start since suffer greatly from miscasts and having one point of Magicka per one point of Intelligence, but become much more powerful in middle game, willpower have inbuilt magic resistance.
In Daggerfall Attributes has even more importance since reaching zero in one of attributes mean death for character, having lower then average attributes mean having penalties (willpower for example give weakness to magic)
In Arena attributes also has many additional features not just one, for example Intelligence affects your chances in negotiating for items and other purchases. It also affects your chances of figuring out a lock in case you wish to pick it. It is essential that any mage or thief has a high Intelligence.
But I think the devs know exactly what they are doing. They were not removing them over night.
They thought long about it and came to the conclusion, that attributes are not necessary.
I wish to see how hard to them take such decision, how they really think about ways making attributes more useful after simplification in Oblivion more useful like in previous games.
So why complaining about something we haven't even tried yet? Doesn't make sense to me.
Well thats make sense for me, game still in developing, and we can still influence on it, developers still undecided about all features, some changes what they done to radical for series and maybe they will see our suggestions and prayers.