No offense but this sounds fairly retarded, and like Bioware might need to get their head examined.
Simply put, creating an ending so horrible that nobody would ever want to see it, and then making it apparently tricky to avoid (hence the save and reload thing) seems like an exercise in "let's see how many fans we can slot off". Either that or a ploy to sell a whole bunch more strategy guides than usual.
I suppose multiple endings adds to replay value, especially if they aren't dependant on a single desician towards the end of the game. However I also tend to miss the point unless substantial amounts of gameplay are also changed. For example replaying huge chunks of Mass Effect to see only a few differant lines of dialogue and a differant ending cinematic would be a bit much... so I hope if they are doing this kind of thing to encourage multiple plays through they are including enough truely differant content at enough points in the game to make it worthwhile.
I'll also be honest in saying that just reading this reminds me a bit of "Cross Edge" which is basically a game that has a good and bad ending. To get the good ending you need to do some ridiculously obtuse things that involve stuff like winning various boss fights without inflicting a single point of damage on a specific enemy, or hopefully finding hidden time sensitive events in previous areas in the right sequence, etc...
It can be fun to do things to change a game's outcome, Chrono Trigger is the masterpiece of demonstrating this despite it's age. However there is a point at which you can just get too ridiculous especially if it's an "all or nothing" equasion with only a handfull of endings.
I for some reason have these visions of something like:
Shepard dies if you don't suddenly backtrack from the second to last planet to the first planet to get the Wrex Hotsprings scene which gives Shepard heart failure from shock. This requires inserting a pacemaker which saves his life from the ordeal, and the pacemaker saves his life again when it restarts his heart after the final bad guy in the cinematic stops it with psychic powers.
Well either that or you need to play monkey-see, monkey-do in Spectre Training to ensure you have a doppel doll.
Those who have played Cross Edge or Crono Trigger will understand exactly what I mean in both cases.