Emperor's Demise, Rebel Requirements, and 'Old Ben' vs 'Stormtrooper Han'

So I was looking forward to checking out this event. Bummer, the requirement for 'rebel' characters is 5 and I have only 4... out of nearly 40 characters I have. Okay, disappointed.

Then I get looking over my characters. 'Old Ben', he should be a rebel, right? I mean anyone that's seen Star Wars knows that Princess Leia called him into action on a top secret mission for the rebellion, saying "You are our only hope!" Also, he fought Vader, trained Luke, and even guided Luke to 'Use the Force' in destroying the Death Star. He was right there on the Death Star with 'farm boy' Luke, Princess Leia, and Han (in storm trooper outfit), who are all 'rebels' in Galaxy of Heroes. So 'Old Ben' must definitely be a 'rebel' too, right? Nope. WHAT?!?!

Or how about those Ewoks that helped destroy the Death Star II and bring the Empire to its knees? Rebels, right? Nope.

I get that GoH needs to have game play balance an all that, so characters can't maybe be precisely as they were in Star Wars. But really? 'Old Ben' not being a rebel is just plain dumb. Technically speaking, he was more with the rebellion than Han Solo was, who only really joined the fight against the Empire at the very last few minutes of Star Wars.