Regulation 261/2004 clearly define compensation because a strike did not apply.

• If the cancelation was due to extraordinary circumstances that could not be avoided. For example: bad weather conditions, political instability, strike, security concerns on the ground and/or in flight

https://www.airfrance.ca/CA/en/commo...emnisation.htm

Sorry.

I am in a similar problem, but compensation apply because I have be downgrade (strike exemption did not apply in this case).