> Product-Specific Documentation
EU specific certificates were previously always required, now they sometimes aren't. A net reduction in bureaucracy.
> VAT and Duties: If you're selling to EU consumers, you may need to register for VAT in the EU or use the One-Stop Shop (OSS) scheme for simplified reporting.
VAT registration was previously required anyway. In some cases it can now be avoided; a net reduction in bureaucracy.
> Commercial Invoice ... Packing List: Provides details of the goods being shipped ... Proof of Transport documents
These are used regardless of where you ship to. Do you really think people are moving things about Europe without invoices or bills of lading? Net neutral.
> Trade Agreement Compliance: Ensure that your business complies with the terms set out in the UK-EU Trade and Cooperation Agreement, especially regarding rules of origin and applicable tariffs
Most UK trade is in services that are tariff free anyway, and trade agreement compliance is apparently easy enough to not discourage trade.
It's just not that big of a deal. Meanwhile "can't use AI" is a big deal for any economy that wishes to remain advanced.