Unable to locate video but found this......... might put a few minds at rest......
" But in the future, the TIE is expected to simplify administrative processes and, especially in the current climate, facilitate the hassle-free exercise of rights such as border crossings or international travel.
With travel between the UK and Europe now seeming more difficult than ever, Spanish and British authorities have wanted to highlight how a biometric document that´s scannable by border officials and serves as a photo ID, could save time and trouble, especially as not all authorities outside of Spain are necessarily familiar with the older green residency documents."
So if not a constant traveller, especially to other countries within the EU, then don't bother. We certainly won't be.