Somebody pointed me to the latest version of the act and it does have the 80% after 1000 charges text.
https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A...
This is the text:
> the battery endurance in cycles achieves a minimum of 1 000 full charge cycles and after 1 000 full charge cycles the battery has, in a fully charged state, a remaining capacity of at least 80 % of the rated capacity;