The security of WiFi is much less of a concern for my home network today than it was during WEP time. Today everything I care to protect already runs over SSL and all the sensitive resources (documents file server, for example) are protected with authentication. This the only actual attack vector for me is WiFi or internet connection which I already share through public WiFi.

Same applies to WiFi in the coffee shops (do you remember the time when FB didn’t use HTTPS?) and other places. Thus the WPA3 upgrade brings much smaller benefits compared to WPA2 upgrade.