The “control” rule is only if the ball leaves the hand. If there is separation, they need to regain control for it to be a try. No separation means no need for there to be control. He can follow the ball to the ground with the tip of his finger, if it never breaks contact, the moment it touches the grass it’s a try, regardless of how it spews out afterwards.
Feldt’s try was the same. Had lost “control” but there was never separation. It was even called a “no try” on-field but video ref overturned it because of the rules above.