Several years ago we chose AngularJS/v1 for an enterprise-level app. Once Angular/v2 was announced it was still more of an experiment, but things have changed far faster than we anticipated.

Projects like ui-grid are dying and ui-bootstrap is dead and they're moving to Angular support only. We're suddenly using tech that's being abandoned a lot sooner than we foresaw.

I have my issues with Angular v2+, though overall it's way better than v1, but I truly hope the same doesn't happen to those making an investment in this new platform.