Notice that even in the dark energy ending the Reapers were absorbing organic matter
It didn't make sense then, and it doesn't make sense now. Plus, your argument is: Some other work also features bad writing, therefore it is good writing...
"Synthesis means the death of diversity"
Synthesis *must* mean the death of diversity for it to be a viable solution to the Reaper problem. If you retained diversity, Reapers and the newly-formed organic-synthetic hybrids would just keep killing each other, much like we humans have been killing one another for millennia - over resources, minor differences, etc.
Because people use the space magic thing to attack synthesis as part of the story. They don't like the idea as a story piece so they come up with the excuse that it is bad because it is not "SCIENCE!!
That's a strawman. The problem with synthesis is
a) it is bad writing - do you thing Lord of the Rings would work if they only introduced the One Ring in the last 5 minutes of Return of the King? This is what people mean when they cry "space magic", and what you don't get.

it is illogical - it does not logically follow from the description that it is a viable solution to the Reaper problem [conversely, it does logically follow from the description of destruction that destruction is a viable solution to the Reaper threat - because destroying all Reapers will stop them killing you. Duh]. Bioware forces the player to make Shepard act out of character to get the "best" ending. That is bad.
They then ignore for example the fact that EDI is more individual and more alive post-synthesis
That's an argument after the fact. You cannot use it to justify Shepard's decision. Thus the previous argument applies. If you don't understand why, then maybe you should spend less time dissing science and more time getting a degree in science or mathematics.
I always found the "space magic" argument a slippery slope as we can argue that point with any new story or plot line introduced
It's a matter of craftsmanship. It can be done well. For example, control was established well - you spend ME2 with Cerberus gathering Cerberus and Reaper tech; in Retribution you learn about them experimenting with Reaper tech on Grayson and in ME3 the idea of control is introduced first by encountering huskified but still loyal Cerberus troopers, and later on Sanctuary well before the encounter with Godchild.
The problem is purely execution. It could have been done well, but Bioware didn't have the time or couldn't be bothered. Either way, it is bad writing and you cannot argue otherwise.
Modifié par AlexMBrennan, 11 juillet 2012 - 12:30 .