Hi!
Hehe.
I am reminded of that old saying...
"the more things change, the more they remain the same...."
The eldar army list draws a LOT of flak. It does now and it did then, when it was first released.
Every single revision has had a variation of this discussion. I'm still waiting on a favorable resolution....
I always view the army lists as "suggestions". I agree that as you get older or "mature" as a gamer the more competitive aspects fall by the wayside.
From a design perspective the army lists have tried to even the playing field and thus minimize such problems by limitations and such of certain "problem" units.
Are they needed for "friendly" games? Hardly. But rules can't assume that all games are friendly, so they are there for those less than "sportsmen" like gamers.
Can you win against those less than "kosher" army lists? Sure. I did it all the time in the old days. But not everyone is an expert, nor plays so much that they know the way to handle it.
I guess I'll stick a rule in the optional book for "free-form" army construction for those whom like it. But from the standardized point of view, after 20 years playing this game (12 years of netepic!!), the original army construction/ points values were in some cases VERY flawed and the only two ways of reasonably balancing them were either through points adjustment or quantity restriction. The game mechanics give you very little room for much else.
Also the newer revision moved to the "codex" approach fitting some units into a certain "flavor" and making some "choice" units more or less unique (quantity restriction).
All told, the rules offer a template for those new or just familiar with the rules have a "balanced" experience playing. If you are an old hand (a lot of us are), use the "free-form" approach and enjoy yourself.
Primarch