User blog comment:Thailog/Ep. 206 "Bloodlines" discussion/@comment-5001598-20120610203035/@comment-4821105-20120807084640

Maybe because he now has normal life unlike other Flash members. Remember how Wally doesn’t to Artemis want to go to missions because if they start to go to missions their normal life was over. Wally and Artemis are kind of rusty and possible that Artemis trained in secret.