>>102153734not really
it was bee itself, when optimus ended up in limbo, bee disappeared to look for him, notice that after this happens stasrcream can't talk with him anymore, in fact, you see how this ended up affecting him badly when shockwave popped up and told him about the chosen one stuff. it crushed him so hard that he headed back to iacon to be arrested once again, until the decepticons and the other cybertronians cheered him up.
"you may had been a lying asshole, but you were honest, differently from everybody else, and kept everything in peace" even soundwave was jealous of him because of it, the cybertronians trusts on Windblade because of him.
the thing is, of all people why him? again
Starcsream may be the defacto Arisen Prime-Chosen One reincarnated/The Son, Rung is Primus the father, and Optimus is the holy spirit, and the 3 will play their parts at the end to defeat unicron(the devil) and his sonswere getting into EoE and Revelations territory with Unicron, and Roberts may be a hack enough to do this one.