"loaded" and "dataloaded" events don't seem to fire

Unless I have misunderstood the API, the "loaded" and "dataloaded" events seem to fire before we have a chance to register an event handler.

function alerter(s) {
  return function() { alert(s); };
}

// https://github.com/NUKnightLab/TimelineJS3/blob/3.3.7/API.md#events
// events that don't fire as expected:
//   loaded, dataloaded
var events = [
  "back_to_start",
  "change",
  "dataloaded",
  "loaded",
  "zoom_in",
  "zoom_out",
  "nav_next",
  "nav_previous"
];

timeline = new TL.Timeline(
  'timeline-embed',
  'https://docs.google.com/spreadsheets/d/1cWqQBZCkX9GpzFtxCWHoqFXCHg-ylTVUWlnrdYMzKUI/pubhtml'
);

events.forEach(function(evt) {
  timeline.on(evt, alerter(evt));
});

Test Case

http://jsfiddle.net/fiddlegrimbo/mpdfa9s5/

Reproduce the behavior using the linked JSFiddle and compare it with the loaded and dataloaded entries in API.md. Trace when those events are emitted relative to the TL.Timeline construction and handler registration; done means the handlers in the example receive both events as documented.