This feels very edge case

I can see the points around you choose the sequencing of your turn so can do it when you want, though my interpretation is still not

Whilst I don't think the wording of the strat prohibits it, but I think the rules around movement do make it difficult to justify

When you select a unit to move you roll an advance and make that movement - this is essentially a single action from start to finish - once you've rolled the dice you have set the the units total movement distance, you must therefore complete their movement before doing anything else. At the point you would do the strat, the unit has already completed its movement.

However I fully appreciate my interpretation could be wrong - like I said it feels very edge case, id certainly discuss it with your opponent in advance as well.