A lot of cancer stuff isn’t actually a cure, and if it is it’s only for a specific type of cancer and the success rate is never a headline item.

So you read a headline that says “cure of cancer” which is conveniently leaving out “for specific cancer abc in these specific circumstances with a success rate of 58%”

There’s never really been a true “cure for all cancer 100% success rate” found, and anyone who claims otherwise is misunderstanding the science being discussed.