I think your word is a bit wrong, if you say get a profit of course, but passive income is different again, passive income is when you do not do anything you keep money?
while trading you have to do it, you can not keep quiet and will get the money.
Well, this is not exactly the definition of passive income. If he is keeping his day or regular job, and does trading as of his spare time, break time or free hours, then he can call Crypto trading as his passive income avenue. Because he is not actively involved in it. How ever, I agree with you that crypto trading would need him to be involved, even if it is so called passive for him. To succeed in crypto trading, you need to do researches of the market, study the chats and monitor the market as well.
For your question, yes, you can make passive income from Crypto if you are smart and decisive.