I wouldn't say that Subriel Matias is great, but he has one of the most destructive power at 140 lbs. Unfortunately, he might have a off-night against Paro as he was not able to execute anything in that fight.
He could be overtrained though as he might be thinking to have a good show with his fans in Puerto Rico. And with that win, I think Paro will defend his belt against Hitchins and might win with another unanimous decision.
Subriel is such a great fighter then that DAZN signed him a contract but after the Paro fight they cut ties with Subriel, Paro dominated the fight that you do not want a rematch on that fight, so there's a shift on Paro now and he is up against an up-and-coming fighter in Hitchins.
If Paro will fight on a level when he fought Subriel, he can easily beat Hitchins, statistics and experience, Paro has a big edge but since Hitchins is also undefeated, I think the fight will be exciting.