3 second question

[Toren]

A1 is throwing in the ball from the endline. A1 passes the ball over the head of A5 who was jumping in the lane, hoping for a dunk or easy lay-up. A5 lands in the lane and turns to look at the ball. The ball hits the floor and is rolling in the frontcourt.

Does A5 have 3 seconds in the lane from the moment the ball hits the ground in the frontcourt?

With the new rule establishing team control on a throw in, it looks like we have frontcourt status of the ball and we have team control. Am I missing something or would this be violation if A5 stayed in the lane 3 seconds?