I hate Biggs he represents a major failing in game design, you should never remove choice from the player, I consider using him to be a **** move and I'll never play him in any rebel list.
Interesting point of view, what's your stance on stress inducing abilities/munitions and Ion cannons then? Because in effect they also limit or remove the choice from the player.
I think that each one of these has the ability to remove choice and in effect control the other player with a view to dominating the battle space, but they are all limited in one way or another.
For example you have to shoot at Biggs unless he is out of arc or range. The stress inducing droid,munitions or crew have restrictions on their use, be it range or requiring a TL, and stress only limits your next move (to white or green) so doesnt remove all choice. Ion cannons on the other hand control what your next move will be but only work on the condition of tagging a ship with an attack.
To me it all seems quite balanced and none of these are a silver bullet, otherwise they would be the staple for every build.
There's a difference between reducing choices and removing it all together, if your ioned you still chose actions and pick your targets when you fire movement is gone but you still can make important decisions, same with stress you can't do a red but you can chose to do the green or not, and stress does not stop you shooting so the ship can have an impact.
Biggs on the other hand effects not just one ship but every ship for the other guy, you ion one ship he has others that arnt effected same with stress but Biggs is a global effect that severely limits the other guys options without you rolling a single dice.
Ion canons can miss, you can chose not to shoot something carrying a rebel captive but Biggs is always on and effects everyone until he dies so it's not the same really.