Most new systems are IP based and require multi site communication for basically everything, so don't blame Quebec they use the same systems the rest of the country uses. Ie OPG has a job posting mentioning NERC CIP
https://jobs.opg.com/job/Oshawa-Cyber-Security-Specialist-ON-L1H-8W8/603890717/
https://www.hydroquebec.com/reliability-coordinator/standards.html
"Blame Quebec" is lazy. Russia using a target that won't reasonably retaliate as a test is likely. Québec might have been the first instance this penetration was detected as well, this should trigger audits in the rest of the country.