I'm not going to debate personal opinion, but the fact is, 5th edition was driven by Mike Mearls who boiled D&D's essence down to "the thrill of a natural 20, the agony of a natural 1".
yes and at no point does that d20 he uses or you quote make up random character gen (unless I missed the roll 1d20 for stat options....

)
So there's a man who clearly understood the central role that dice have in the game, and what makes it special.
yes he does, when an out come needs to be determained in a random way roll 1d20 higher is better... nothing about stats though
Dice aren't fair. You don't get that natural 20 when you need it (but sometimes you do!), and you often get a natural 1 at the worst possible time, it seems. That surprise is also central to human experience. You don't know when you're going to have that chance encounter that changes your life, or get hit by that hurricane and lose everything.
and if everyone starts with tharray, or point buy, or just takes 3 18's and 3 17's or the DM assigns stats... this entire paragraph changes not one bit... and as such doesn't matter for rolling dice for stats...
Injustice is a necessary prerequisite for justice.
nope... there is no need for something bad to off set something good. There is no need for someone to commit a crime to make a place crime free... Justice can stand on it's own with no injustice....
It's much more satisfying to overcome long odds than fair ones, and makes a more interesting story.
100% agree here... infact that is my DMing motto
Balanced encounters are a bad thing, basically.
no... sorry gotta stop you there... there is a time and place for inbalanced ones but in general balanced is better (not saying never use, or even that balanced means even... easy, mediam, hard, and deadly are all balanced... and some times you throw something under easy or over deadly... but not regularly)
You want to drop that boulder (how ungentlemanly) on the lich and finish him before he can disintegrate you.
or you want your fighter to stand there disrupting his spell casting while your wizard reddies a counter spell and your cleric fights his minons....
You want to face overwhelming hordes of undead and cunningly get them stuck in a bog and light them all on fire. Unbalanced encounters are best.
what about an unbalanced encounter makes that better?
if my 5th level party does that to 100 cr 1/8th zombies, or my 20th level party does that to 1,000 cr 1 zombies, or my 1st level party does that to 100 cr 10 zombies... it's still cool... what about unbalanced makes it better?
my party once killed a Cr24 dragon with 1 5th level spell, we remember and joke about it... my 18th level mystic theurge/archmage once leveled a castle full of level 5 knights we talk and joke about that... last Tuesday my party beat a necromancer that was a hard encounter by xp budget but it was a ton of fun, I bet we will talk about it too...