While the bots in 4 were designed in a way that differentiated them a little better, i found no reason to root for any of them to survive, in these films, Optimus Prime and Bumblebee are the only Autobots that are able to stand from the crowd.
Aside from the bots, i also found Age of Extinction extremely clunky, almost every scene needed comentary, and some of the dialogue was for me the worst in the entire film series: "My face is my warrant", "whenever you look at the stars, think of one of them as my soul". I remember there being some worse lines than the last one i mentioned though.
The humans going after the Autobots wasn't a bad idea in theory, but the way they handle it is terrible, i get it that the main human villain was making a deal for the seed, but why would any of the other military agree to work with Lockdown? One of them was mentioning how he "had a sister who died in Chicago", alright, it does make sence that this man would see the Autobots as being villains too, but then it's revealed that he's working with the much shadier Lockdown.