Lost

Has anyone else watched the end of season 2 yet? I found the second season to be rather slow initially, but it has been picking up speed, and the final twin episode was very spectacular.


Spoilers:

Locke and Echo are, in my opinion, far too important characters to have been killed off by the "magnetic blast". Also, considering how important it is to press the button (to prevent the end of the world?), shouldn't Dharma Initiative have thought of a smarter solution than to hook up a computer which requires manual input from a person to the magnetic discharge process? Also, why would they put blast doors in there which prevent people from reaching the computer to save the world? I'm pretty sure it's just a test of some kind with flashy effects to really see how far people would go. Come on, there's even a monitoring station to show the progress. If the plane was indeed downed by the earliest "magnetic incident", maybe the flashy effects were just a bit too powerful for their own good? After all, the plane was really far off course. Or did I miss something?