Last year RTP was changes to include "No defensive player shall commit any illegal personal contact foul listed in 9-4-3 against the passer." By definition, the QB is not a "passer" until he throws a legal forward pass (2-32-11).
In the OP, since the foul happened before the ball was thrown, A2 was a runner and RTP would not apply. If the FM foul is accepted, it would be enforced from the Previous Spot since it happened during a Loose Ball Play.