Path of War Expanded

God of the Hourglass stance: " In addition, you may take an additional move or standard action during your turn."

Can additional swift or immediate actions be gained with this stance? Both represent a smaller usage of time than a move or standard action.

Maybe the stance could be re-written to say : In addition you may take one additional swift, immediate, move or standard action.

I can think of no reason to exclude swifts or immediates while allowing move or standard actions