They think so!
My step mum is in rural France at the moment. She needed to get back to the UK for a funeral, but a few days before the flight home, Ryanair cancelled it. She looked into alternative ways to get back in time from where she was but nothing worked. Thing is, Ryanair are refusing to refund the return leg from the UK to France, even though she clearly can't make the flight... because they cancelled the outbound leg! They won't even offer her a credit note. It seems pretty unfair?