Yes. If anyone wants to be really nerdy about this, you can Google CJEU case C-344/04, IATA and ELFAA.
This was a challenge brought by the airline industry in 2004 when the EU first brought in Regulation 261.
What they argued was that passengers already had a right to claim for any financial losses suffered in a delay or cancellation (as long as they have evidence of actual losses). This right is laid down in Article 19 of the Montreal Convention, which establishes the international liability framework for carriage of passengers and cargo by air. So, they argued, this new EU law is in conflict with the existing liability regime.
The European Court said nope, these are two different types of compensation. Our new law is a quick and easy way to give passengers a fixed sum in compensation for the loss of time and general inconvenience they’ve suffered, without having to produce any evidence of financial loss. (Oh and by the way it will give the airlines a kick up the arse because they need to be made to try harder to avoid delays and cancellations). If you want to claim in addition for financial loss, you are free to go ahead and do so. The two regimes coexist side-by-side.
And that remains the law.
Later the the 2009 Sturgeon case (joined cases C-432/07 and C-402/07) stated that the compensation was for “loss of time” which was ascribed a financial value because loss of time is irreversible. This was important because they were arguing that a passenger whose flight is cancelled suffers the same damage as one whose flight is delayed for a very long time (when your flight is cancelled you have the right to be put on the next available flight so you do fly, just a bit later, and that is similar to someone who flies later on the original flight they booked).
So, to all those talking about conceptual difference between refunds and delays and breach of contract and types of loss suffered- I hate to break it to you but you’re not the first to mention this- it has all been thrashed out by the top aviation lawyers in Europe, several times.