People point to those QBs as examples of how short QBs with talent can succeed in different ways.
As for the Manziel comparisons being lazy see if you can spot the difference.
Baker- Got Drunk and (poorly) attempted to run from police. Goes too far taunting the other team, crotch grab, flag plant, throwing a football at them.
Johnny Football- Arrested for fighting and having a fake id, Kicked out of frat party for underage drinking and behavior with multiple video's surfacing, Kicked out of manning passing academy, tweeted about wanting to leave A&M as soon as possible, violated NCAA rules by selling autographs, got drunk and passed out on an inflatable swan, parents publicly stated they were concerned he would not be able to handle stardom.
Baker- One time mistake with police, needs to better direct his competitive fire.
Manziel- History of alcohol abuse, evidence that he puts his desire to drink ahead of rules and football, his own parents are concerned about him.
So yes its lazy because the heart of Manziel's problems were his addiction, he was an addict in college, and it tanked him in the NFL.