Currently the simple event plugin defines a priority for the event but not all events go through the SimpleEventPlugin. That's just one of several EventPlugins. The remaining ones now get the wrong priority associated with them. 

E.g. I think all of these should be discrete:

change
compositionend
compositionstart
compositionupdate
selectionchange
textinput

These show up too but I don't know if they're even bridged.

dblclick
pointerenter
pointerleave

Flare defines its own priorities.
domEventName,
  eventSystemFlags,
  container,
  nativeEvent,
) {
  if (
    !enableLegacyFBSupport ||
    
    
    (eventSystemFlags & IS_LEGACY_FB_SUPPORT_MODE) === 0
  ) {
    flushDiscreteUpdatesIfNeeded(nativeEvent.timeStamp);
  }
  discreteUpdates(
    dispatchEvent,
    domEventName,
    eventSystemFlags,
    container,
    nativeEvent,
  );
}
function dispatchContinuousEvent(