NCAA Timeout Question

[JS 20]

Working a women's summer league w/ college players last week. League uses NCAA rules. A1 chases a loose ball and gains control of it with one foot on the floor in bounds and one foot in the air. She has complete control of the ball, her foot is completely stationary on the floor, however her momentum is taking her OB. She looks at me and requests a timeout just before her airborne foot hits the floor OB. I granted the timeout. The other team was irate saying that I shouldn't have granted it.

Had she been completely airborne and tried to get a TO, I would not have granted. However, in the situation above, I was/am not familiar enough w/ the NCAA rule to reverse my decision and go w/ an OB violation instead.

Was I right in granting the TO? Thanks!