I remember organized play reports of the first 4E adventure, Keep on the Shadowfell, had the Irontooth encounter resulting in TPK 50% of the time. After a bit of power creep it was no longer so killer. The same thing happened in 3E with that first adventure, Sunless Citadel, and during Paizo's first adventure paths, especially the temples in Age of Worms. Necromancer Games became infamous for associating "first edition feel" for "gobbling characters like candy" with their very first adventure, Crucible of Freya.
I have no idea what the first few 2E adventures were. But the earliest 1E adventures were tournament modules, and it was a badge of honor to reach the end.
Sucker punching players with first adventures is, like, a tradition!