Red Superfly
You creepy little stalker
Actually - I'm damn sure that complicated theory is pretty much EXACTLY the same theory as the Back To The Future approach to timelines.
The fact that time travel doesn't re-write time, it simply creates a new universe of events, its exactly the same idea as the one used in Back To The Future. Points A to B converted to points C and D. It makes sense.
How this fits into this deleted scene is merely because, like I said before, I think it's because it would make everything a bit too coincidental - allowing the audience to blatently focus on the paradox.
Not only that, but it also adds a lot to Terminator 2, in a sense that the sequel is more of a surprise. I mean, in Terminator 1, by the end of the movie, we are convinced that everything is safe. If we see the Cyberdine building, that hope is lost - we know there WILL be problems. Without the scene, the audience is led to believe everything is rosy, and when the sequel turns up, the audience is more shocked "We thought it was over".
And hence the reasoning behind Terminator 2 - it was supposed to be the end. But, as we all know, T3 ruined the franchise and decided to p*ss on everything.
Had to get a T3 rant in somewhere.