Phising and many others scams became so easy (and probably profitable) because of the massive number of unaware people eager to earn. Not to mention that most are always trying to find the 'easiest way through' in earning forgetting the fact that it shouldn't or isn't always work like that.
People give their entire system under the control of hackers to earn some free income! But they do not think that there is nothing free in the world. If someone sends an email with the promise of some kind of free money, then it is a completely fake email. Newcomers to the crypto market take some time to experience such scams. This type of scam still works, so scammers are constantly coming up with these scams. So everyone should be a little extra careful.