I see what you're trying to do now; differentiate traits of basketball as "passable" or not. But in order to substantiate your claim, you again used circumstantial evidence but we haven't established that good shooting necessitates having a shooter father vs a shooting coach/shooting friend.
What if Dell Curry wasn't around very often, and in fact it was due to nightly shooting matches with Stephen's brother/friend that in fact caused him to develop such a great stroke? What if he played with a brother/friend that was a lot taller, causing Curry to develop a quicker stroke? At the end of the day, Curry still has a good shot and Tyreke has a shot that could be bested by a lot of playground guys with no Dell Curry dad.
But I digress...
If Tyreke comes back and does not play to his previous form, it will definitely hurt him. Out of sight, out of mind, and if the last impression of Tyreke is 10-15 pts, rusty timing, etc, while Curry throws in another big game, it will narrow the margin, whether you guys think it fair or not.
IMO, Tyreke is an easy call because of his steady play. I would say one knock is that aesthetically, Curry's game is better than Tyreke's, and for guys who don't get to watch full games, Curry vs Tyreke is like watching Durant vs. Lebron: Durant is buttery smooth, while Lebron is mostly power.