> I wonder how some of the bigger players will react (no pun intended) after their abandonment of React in lieu of Vue or some other framework
What do you expect them to do, shrug and come back? I doubt anyone who left based on concerns with their stack being owned by Facebook is likely to regret weaning themselves off of it.
The react ecosystem is massive, and includes impressive projects like the various backends/renderers: react-native, react-sketch.app, react-vr, react-pdf, ink, that have no equivalent in other frameworks (or at least to nowhere near the same level of maturity), so yeah people ditching it may well regret it.
What do you expect them to do, shrug and come back? I doubt anyone who left based on concerns with their stack being owned by Facebook is likely to regret weaning themselves off of it.