The answer to this question may be obvious, but, well, it isn't to me because I'm asking it!
"Figures can never move through any figure affected by Swirling Vortex."
Are fliers considered as moving through figures, or over them?
Also, if a small or medium flier lands on a space within Swirling Vortex, is that figure considered affected by Swirling Vortex, even though it wasn't forced to stop?