As a general rule the weakest player on any unit isn't as good as he appears to be.
For instance, Harry Douglas looks better than he is because he's out there with Julio and Roddy, Gerhart looked better than he was because he was sharing carries with ADP, Langford looks better than he is because he's propped up by Quinn, Long, and Brockers, Brooks looked better than he is because he was out there with Aldon, Willis, and Bowman, and so on. You take away Julio and Roddy (a la last year), you take away Peterson (a la this year), you take away Long (a la this year) or you take away Aldon and Bowman (a la this year) and all of a sudden Douglas, Gerhart, Langford, and Brooks start to look a lot less talented.
One way to look at Maxwell is that he's getting "picked on" because the other Hawks' secondary members are so good, but the other way to look at it is that he's looking pretty bad in coverage so far this year even though he's playing in a secondary with some of the best players in the game.
Him getting thrown to a lot doesn't mean he should be getting eaten up a lot, particularly if he's good. This is basically saying, "well, he'd perform poorly less if he was on another team, because he'd have less opportunity to perform poorly because the ball wouldn't be coming his way as much."
My take on Maxwell is basically that over time interceptions are pretty fluky, and he had a string of interceptions that made him look better than he is. He might improve, but so far he looks like he's getting attacked, and successfully attacked pretty consistently. It's only not an issue for the Hawks IMO because the rest of the secondary is so good.