This is an industry wide problem and the CAA need to treat it as such rather than picking and choosing who they are going to enforce it on.
EASYJET
If we’re unable to get you to your destination within 48 hours you can switch to another airline, take a train or bus or hire a car. The alternative transport should be within the price range you paid for your original return flight or as close to it as possible.
That doesn't sound like it complies on many grounds, especially with the restrictions on price and the timeframe limits that they are putting on it
WIZZ
Cancellation information
If your flight is affected by a disruption (see below), please log in to your profile, retrieve your booking and you will be able to re-book online free of charge, or obtain a refund.
Again this is clearly not adhering to the kind of guidelines that the CAA are trying to implement.