The sounds are identical when he fire off Dimension Blast as well.
Also,
here he's initiating the finisher, and as the laser goes through each cards it gets empower and becomes thicker/brighter (at the tip) each time it goes through one, reminiscent to the one in question in the OP clip.
To reiterate, he could use the finisher as flight using the same application with any of his physical finishers if he wants.
EDIT 1: Since the cards in his kick/sword finisher does the same phasing things as the gun finisher.