WPA normally means "WPA2 Enterprise" these days, but I'm guessing you all mean WPA-PSK. Right?
In the absences of PSK being specifically mentioned, I would say "yes." I seriously doubt a home environment, and thus our hobby Amigas, would have the functionality let alone the need for 802.1x or RADIUS-based authentication. Enterprise would require some SSL libraries, as well.
(I know from using the driver that WPA/WPA2 worked via a pre-shared key, so I automatically exclude "enterprise" as an option.)
If otherwise, I would be happily surprised. I run 802.1x in my home environment because I have a home office and I keep my work systems connected via a VLAN. I just wish I could get a RADIUS server working properly on my Solaris system.