So I read through most of the posts in the 24 pages

about this, and would propose that we think about this another way.
During their playtesting, the Firaxis folks realized that they needed or wanted a late game land unit. Not just spaceship parts, but a new military land unit (not naval or flying). The specs for said unit included combat str of 150, movement 3, penalty attacking cities, and no defensive bonuses. Now, what to *name* this unit?
Since it comes after modern armor, and relies on late-game techs and resources, we could call it "post-modern" armor.

Or a military-sounding acronym, like Advanced Multiweapon Land Assault Vehicle (AMLAV). And we would all be excited about how many "Lavvies" we should build and how to use them. But noooo....
Civ has a history of injecting humor, or a bit of whimsy into the game. Remember the video clip advisors in Civ2 ("You're the King, King!); the Civ3 quips, science advisor with Sid's face, and the Elvis units; the Civ4 pic of Al Gore in the icon for the Internet. So the Firaxians decided to give a big shout-out to the fans in general, and CFC in particular, and named this unit "Giant Death Robot", which includes humor as well as generous portions of awesomeness and cool.
I understand that some folks' taste (and sense of humor) run in a different direction. A goofy-named unit spoils some of the mood/game sense for them. And there will probably be a patch to change the name of the unit. But it has a role in the game.
But the more interesting question is: What were the gameplay needs/wants which gave rise to a late-game land unit? Remember, there are no Stacks of Doom, Civ3-style armies, or Civ4-style great generals. What are the interactions with victory conditions that it would make sense to build a powerful land unit, rather than bombers, missles, or sea power? Far from modding this AMLAV out of the game, I am curious about what the role will be for late game warfare? Is it more likely to be used in multi-player, or single player?