It is, well, stupid to believe that the inclusion of more triggers will have the game play the game for you.
I have seen many triggers that are the only way in giving the player a sense of historic insight into what is happening. Many of the good mods for EU2 offer multiple choices (i.e., something happens, something happens in moderation, or nothing happens). I really wonder what is going through the heads of people who believe that triggers do everything.
Triggers are useful in GUIDING, but those who oppose them tend to ignore this, and incorrectly say that triggers CONTROL. They do not control, this is a lie.
A good mix of freedom and controlled triggers is the only way you can get this game to be interesting beyond conquer, conquer, conquer.
Diplomacy is only good if you are big enough to push others around. Diplomacy through triggers (i.e., historic pressuring of Poland to go to war over Danzing) are required, as the current HoI diplomatic function is incapable of such complicated policies.
EU2/HoI are built around BOTH triggers and freedom of choice. If you don't get this, you really don't get the game. I absoultely hated EU2 before playing the EEP/AGC mods, as the original scenarios severley lacked historic plausibility. Everything started ok, but only ended up reasonably close to history 1 in 1000 times (even with no influcence!).
Triggers are necessary, as they fill in for an AI that REQUIRES them. How else will the AI know when and where to attack???
Many people would try for a challenging game of EU2 by refusing to follow triggers (i.e., Castille becoming Spain). Triggers are NOT written in stone, they are caused by a combination of TIME and ACTION. Should Germany develop strong armour technology, it would be JUST GREAT if it attacked the Maginot Line with its tanks in piecemiel... That is what we all want, a stupid AI. Undoubtedly there will be people from the EU2 EEP/AGC who realize that everything cannot be done by the AI alone, and will create logical and challenging triggers that will remove the predictably tame actions of the AI.
Should the player control Brazil, I would expect that 99 out of 100 games should have the rest of the world not influenced by the Human player to go as if everything was almost exactly like what happened in history. If it does not, something is wrong.
THIS is what proponents of triggers are after, so the un-influenced world will continue on as it should, not with Italy conquering Europe by 1942...