On the VOR Notice board you can read the full decision of the Jury in the request for reopening by ER3 of the issue around their Measurement Certificate and their non-compliant Keel.
It's a lengthy document but interesting to read. As always with measurements issues, it comes down to who said what and when, about the details.
In the end however one basic principle is upheld: Not the OA, not the Jury and not the Race Management are responsible for complying with the class rules, no matter who said what. That is the sole responsibility of the boat-owner and any other person in charge. Straight from rule 78.1
In any other race non compliance would mean: no racing for that boat. ER3 has at least been spared that....