Plus do I even have to mention how the Decepticons are treated as walking punching bags in the movie?
Starscream and Megatron got a ridiculous nerf in the second and third film, but in the first movie they were really boss. Starscream got like 17 minutes screen-time and destroyed the hangar, freeing Megatron, Blew off Bumblebee's legs, Nonchalantly stomped Ratchet and Ironhide while barely scratching his paint Job, Blew up a helicopter which was going to take the cube from Sam, and performed the most awesome piece of Jet-Jujitsu on some F-21's.
And Megatron ripped Jazz in Half and pretty much owned Optimus Prime for the whole movie.
They did yes. I mean for the brief time the Decepticons were in the first film for the most part they were a decent threat.
That is what irritated me the most when seeing ROTF with how Megatron beat crap out of Prime but then in Revenge of the Fallen he was Primes punching bag. Plus Prime just came off as a psychopathic murder "give me your face" :/