OK, so they were signed by an MLB team
That's nice but it's not really something to base a movie on. Teams sign and draft all kinds of guys, a lot of whom don't make it. The guy from The Rookie made it to the big leagues - to me, the fact they both struggled to get very far in the minor leagues undermines the feel-good factor of their story.
Also, out of a population of 1.2 billion, statistically it shouldn't be a surprise that there's a couple of guys who can throw a baseball fast.
"Worthington, we're being attacked by giant bats!"