In all other editions of the game, armor itself sets the baseline. Even thought the d20 system reversed the way AC worked, it is still very easy to identify what a good AC is (anything that is equivalent to plate armor or better, for example). This problem exists across the math of 4e, as there is no "in world" reference to what the numbers mean.
Just imagine an unarmored 20th level Fighter simply dodging a 1st level Fighter while the 1st level Fighter attempts to smack them. In which edition does the expected happen? That the 1st level Fighter barely does anything at all after a few minutes of trying to kill the other Fighter?
1e/2e: Fighter is likely AC 10. Probably gets hit more than half the time and is killed after 2 minutes.
3e: Again, AC 12 or so(14 Dex?). Fighter 20 probably doesn't even last that long.
5e: Again, AC 12 or so(14 Dex?). Fighter 20 again dies quickly.
4e: Wait a second - AC 22 or so and Total Defense Action = 24. Fighter 1 likely has a +8 to hit, so only hits the higher level Fighter 25% of the time. He likely dings him for a few hp, but he's unlikely to come anywhere near killing him. Even without Second Wind.
That's what you'd expect in an actual fight with a fast, strong novice going after a fast, strong expert unarmored swordsman with "in world" reference.
But to say that for the past 30,000 years in the Forgotten Realms, everybody was wrong, and now they all call elves eladrin, and they have different abilities and such? It doesn't work so well.
According to Forgotten Realms Campaign Guide page 5, ancient lineages of elves came back from the fey wild - a different plane. Those are the ones with teleportation and they're the ones who call themselves Eladrin. Some other elves, particularly Gold/Silver started calling themselves Eladrin because they wanted to be cool. Some elves just rolled their eyes, such as Wood/Wild.
There are a lot of similar issues of what you find objectionable. Just thought I'd point out the thought process of two of them.
I'm not saying you had to get past them. Just saying, if you look more closely, a lot of the options make more sense than at first glance. Especially when you ignore a lot of adventures released by WotC and LFR in year 1...