Well, nobody's perfect. Maybe they figured that if Dr. Doom, who's smarter than everyone else combined, couldn't take the FF down, the solution lay in the opposite direction.
Anyway, the whole point is moot. Just because events have traditionally been written badly, doesn't mean we shouldn't call the events out on being bad in the hopes that future events will be better.
I do agree that Civil War set up a great new status quo in its aftermath. I can appreciate events on those merits. Onslaught wasn't great, but it opened the Marvel universe up enough to give us stuff like the Thunderbolts and the Ostrander/Ferry Heroes for Hire, both of which I loved.