Dude... you should've come to SupaNova and listened to Neil Kaplan do his impersonations of Peter Cullen's Optimus Prime of the 80s ("Authoritative yet action packed hero!") vs Optimus Prime of today ("Slow... ponderous... deep-booming voice")... and umm... yeah, I'll save the rest of that story for IRL conversation.
Really?! In both #1 of the G1 comics and episode 1 of the G1 cartoon, when the Decepticons boarded the Ark, Optimus Prime eagerly led a counter-offensive. There was no "parlay" or negotiation. Likewise when the Autobots first encountered the Decepticons on Earth -- yeah, it was on for young and old!
