It just seems off given how Bail has been portrayed in the nuEU. Every time he’s been mentioned in any books or comics he’s seemed to be 100% a civilian.
In Rebels ("-5"), he’s clearly going to get involved with the Rebel Alliance : https://www.youtube.com/watch?v=nd9zT0eI2z8
And his daugther wishes Ben to deliver the DS plans to her father, so we can guess eventually his former Senator friend Mothma made him part of the Rebel Alliance (“and a traitor !”). Gosh, would be so fun to have him encounter Lord Vader…