> At some point it may be necessary to add the requirement for large companies to have a both human contact point and perhaps a requirement for specifics on account terminations and the like, or at least a way to request them, to the letter of the law.

This is already implemented, under the EU's Digital Services Act, you can appeal and get specifics about account terminations - see https://digital-strategy.ec.europa.eu/en/policies/dsa-out-co...