[tetramer]

That's fair, this definitely may be a functional cure for many people and that's absolutely something to be celebrated.

The language around "cure" is complicated in general. We often use it in diseases like cancer but with modern therapies, we do have some patients on long-term therapy making their cancer more of a chronic one - are they cured? On the other hand, we rarely use the word cure with diseases like hypertension or diabetes which can devastating diseases in their own right but can be controlled effectively with medication.

So yes, what should really matter is the actual outcomes - are people living longer? Is their quality of life better? And, with exa-cel/Casgevy, the latter is absolutely true (and the first will be known after time).