It seems like Wiz was decided to not be made open source, at the time, so as not to add to the war that was going on between React and Angular. Well, the war has passed and in these quieter times, I think Wiz would prove to be a fresh alternative to these and other JS heavy frameworks by being a more conservative middle ground.
It might be worth taking a look at lit-element especially the upcoming 3.0 release. I think it is going to end up as the latest thinking on how to build web apps that are super fast / lightweight.
jsaction is a part of the Wiz framework which Google famously uses for most of its consumer web apps.
It seems like Wiz was decided to not be made open source, at the time, so as not to add to the war that was going on between React and Angular. Well, the war has passed and in these quieter times, I think Wiz would prove to be a fresh alternative to these and other JS heavy frameworks by being a more conservative middle ground.
CC: @cramforce