I think this boils down to:

- Fear of growing complexity of React itself, ie new rules you have to follow in a Suspense world.

- Opportunity cost. 3 years and counting to deliver this—what other things could have been developed? Better Animation primitives? https://twitter.com/RyanCarniato/status/1301193652606173191

The suspense story is actually pretty cool though! Honestly though I wonder if time slicing is worth the effort, or if it's Facebook solving Facebook's problems.

Most concerning is that it can break default browser navigation behavior, since even cached modules you move to no longer render synchronously, because of time slicing.

This thread was utterly demoralizing when I first read it. https://twitter.com/ryanflorence/status/1249090446292180993