But from reading the article he says that with Spine, using either the temp or final ID in your app will work. It seems to handle the temp to final ID linking under the hood.
That's assuming I'm reading the article correctly.
That is notncorrect. GUID is only preserved within one single page. Go to the example, create a page. Copy the link and open in a new tab. You will see.
That's assuming I'm reading the article correctly.