IMHO wouldn't make much a difference, the issue had been known to them for years up to that point. To a large part still exists, the Spanish grid only committed to upgrade the hardware after this incident. Even so it will require about another year to complete the upgrade over there.
I don't follow in detail the news on other European nations but haven't seen much focus on hardening their security until they actually get breached. A recent example (albeit different attack vector) would be the Polish grid: https://arstechnica.com/security/2026/01/wiper-malware-targe...
