Bethesda apparently used a dumbed-down view of attributes as a justification for dropping them, because all they gave for their reasoning was this:
In Oblivion, we also have the following affected by attributes: running speed, jumping height, carry weight, weapon damage, stagger-avoidance, effective skill level, odds at gambling, odds of dispelling with Mehrune's Razor, initial reactions from NPCs, and magicka regeneration rate. Nothing there boils down to levels of Health, Fatigue, or Magicka.
They might have said that they didn't have time for attributes because they were focusing on other things. They might have said that attributes didn't fit their overall game-design goal. Either of those answers would have suggested that their reasoning is complex and that sorry, they just can't take the time to explain it further. Instead, they give an exceedingly dumbed-down, idiotic answer that deserves some ridicule.
Speed is part of stamina, Didn't care about jumping, carrying weight is still in the game (though I'm unsure how it's increased?) weapon damage was redundant since the skill of the weapon determines that, there was no gambling in oblivion, mehrunes razor was a late add on, reactions from NPCs are still in the game based on what type of character you are and not some magical aura around you (I assume personality was how well you smelled), regeneration rate of magicka is part of the magic stat. Half of what you said boils down to Fatigue or magicka and the other half was useless nonsense like jumping hight?. I don't even think a stat influenced that. Acrobatics did.
Todd howard already commented on this, I was telling you what they said. They got rid of the stats everyone thought was useless and thought, as i did, that they all pretty much boiled down to either more health, magic, or stamina in the end. And if they didn't they were pretty useless (like personality).