I think it has lost that ability. The rules for Reinforcements and for Auspex Scan have both been deliberately changed in 9th edition and I am certain that this is not a coincidence. GW
has been quite thorough in tightening up wording in 9th edition to try and minimise the need for FAQs.
Drop Pods are very good and now allow you to deliver 20 wounds of models onto the table rather than 10. From a design point of view, balancing that power with a bit more flexibility in your opponent's response seems fair. Now you need to either be careful not to land within 12" of a unit carrying massed plasma or you need to bring down massed Reinforcements so Auspex Scan can only get one of them.
From a RAW
point of view, I think the new rules are very clear and people are only confused because they are used to the old FAQ
Units embarked inside Drop Pod must immediately disembark. Does that make them being set up as Reinforcements?
This is the key part of the question. Referring to main rules reveals the following:
Reinforcement unit: Unit that starts the battle in a
location other than the battlefield.
This makes it pretty clear that any unit that starts the battle off table is a Reinforcement unit. It does not matter if gets the ability from its own rules (e.g. Teleport Strike) or from another unit (e.g. Drop Pod). It is the act of being set up off-table that makes it a Reinforcement unit. Units in Pods are still Reinforcement units and so are viable targets for Auspex Scan.
It should be noted that this only applies to Auspex Scan. Other codices with similar stratagems such as Eldar (Forewarned) will probably continue to play by the old rules until/unless they get their new codex. I don't see GW
going and FAQing a whole bunch of stratagems across different codices (I could of course be wrong).
Edited by Karhedron, 20 November 2020 - 02:48 PM.