TL;DR when EU law references a harmonised standard, that standard MUST be made available to every citizen of the EU. For free. As it is considered to be part of the law. And thus public interest is a given.
I CANNOT OVERSTATE HOW BIG THIS DECISION OF EUCJ IS!
Press release:
https://curia.europa.eu/jcms/upload/docs/application/pdf/2024-03/cp240041en.pdf