What happened was that you got carried away by your own enthusiasm and messed up with the rules. The rules do not do what you claim them to. That is not a mistake of the adventure designers - the problem is that you messed up with the rules. Everyone does it from time to time.
How patronizing of you. In your world, it appears as though the only reason people didn't enjoy 4th ed adventures was because they were too stupid to understand the rules.
The eladrin in our group played with us for three years, and I helped optimize his character. I was the resident rules expert, and I also regularly destroyed tournament combats, in multiple crunchy systems including 4th ed and Pathfinder. To say that we didn't enjoy the adventure was because we didn't understand the rules is a whole other level of patronizing and frankly rather delusional.
As I wrote a few pages ago, these discussions always end up this way, and that's why I generally avoid 4th ed discussions because no matter what, you're not allowed to dislike it for its own sake, or even dislike something even tangentially related to it, or give a poor review of something its general direction, such as an adventure (which most 4th ed fans admit freely, sucked big time for tons and tons of reasons, mechanical, plot holes, story hooks that made no sense, etc. Come on, everybody knows it), without having the insinuation that you were too mentally incompetent, after several years of playing the game, to understand the rules of how one of our team mate's racial encounter powers works!
The sheer arrogance, you coat it in a polite veneer but beneath all that is a deep seated insecurity. One that reveals itself by the fact that you couldn't resist, even after I said a few posts prior, that all such discussions about adventure design and rules ends up with a 4venger telling everyone who disagrees with them or who didn't like them for whatever reason, was why we quit.
"What happened" is that I predicted your post, and you walked right into it. And into my ignore list.