I realize I might be going out on a limb here, but I thought of this last night while watching the newest Star Trek movie. So hear me out for a minute. Vulcan collapsed on itself because of a point singularity created by the Red Matter in almost exactly the same way Cybertron destroyed itself when the Space Bridge malfunctioned. Considering the amount of Star Trek references already in the film, and the fact that both characters played by Leonard Nimoy lost their home planets in almost the same way, was the style of Cybertron's destruction meant to be a subtle reference to Vulcan's destruction in Star Trek?
The way I saw it, Cybertron wasn't destroyed when the Space Bridge was shut off. This happened twice and it just canceled the teliport sequence sending Cybertron back to where it was in the first place. If you look at it Cybertron never fully materialized in our solar system. We could see part of it as the Space Bridge was bringing it here but then it vanished when the sequence was canceled. What's his face started it back up (which is weird I guess if you watch Sentinel do it you don't need him anymore.) and it started to materialize again. If the space bridge destroyed Cybertron then the section that was already visible would still be there rather than dematerialize signifying that it was just sent back to where it came from.
wait, then why didn't it collapse on itself the first time the transport stopped? and don't say, "the planet has a gravity generator in the center that wasnt transported yet" or something like that. we all know the more mass = more gravity.
