Do we have to have these posts every time a FB video link is posted?

The link works fine.

Cancel the request to setup an account or whatever.

Click on the X on the next "Get the fill experience" page,

The video appears without being logged in, or having a FB account, or using the FB app.

Or just join FB.

Or just miss out on seeing these videos.

FB is crap, But videos on FB is a fact nowadays.