Unlisted Vimeo videos can't be loaded using the data attributes API

[fresswolf]

Expected behaviour

Using the data attributes API one can load Vimeo Videos like this:
<div id="player" data-plyr-provider="vimeo" data-plyr-embed-id="https://vimeo.com/40648169"></div>
Unlisted Vimeo videos recently require an additional hash path segment in the URL: https://vimeo.com/729894358/7767dc808d
We should expect that we can use the same API with the newer URLs like this:
<div id="player" data-plyr-provider="vimeo" data-plyr-embed-id="https://vimeo.com/40648169"></div>

Actual behaviour

When loading an unlisted video we get "Sorry. This video does not exist."

Steps to reproduce

See below codepen to reproduce the bug.

Link to where the bug is happening

https://codepen.io/fresswolf/pen/poLNEdM