@lennonharrison The people who create the skins and charms do not work on the anti cheat system. You're talking two entirely different jobs, one is coding the other is CGI work.
I got to meet the Dev teams from a very large slot machine manufacturer about 6 years ago. Most tech companies use a similar model that they did when it comes to developing software and games. You have artist that do all the work on the visual, you have audio engineers and musicians who make the music/audio, mathematicians, people who code the actual game.. Then there are people who are dedicated to security. Every person at a software/gaming company has an area they specialize in and they focus on it.
EA does quite a bit to combat cheating. The issue is that it's a constant battle. They deal with one version of hacking and a new one comes out that's more complex, harder to detect and combat. EA does not publicly post what they do to combat cheating for one big reason. They don't want to give people an idea of how to work around the system or a heads up of whats coming.
A simple way to view it is as an antivirus system for your PC. It's a constant battle and they constantly have to update the antivirus software with new definitions. The viruses also become more complex and difficult to stop/deal with.