At first I think the caution of the headlines the topic suppose to be, why you can't be rich when having crypto, instead of why you can't be rich by owning crypto, so relating to topic, Bitcoin is something that's not in control of any one but in control of of itself for regulations depending the standard of cryptocurrency marketcap, and its increments depends on the demands which no one can testify accurately when such will occur, because people buy Bitcoin when the price is low would have make a potential profit assuming them know exactly when will zoom up, so to be Rich in crypto its based on long time holding of cryptocurrency.
I think there is a need and want that some people talk about something with big bold headlines to get more attention instead of other calmer methods. If you write a topic called "this is why bitcoin will be one million dollars this year" and then you talk about how it may not reach there but it could definitely reach there because it has no regulations so if someone comes in and buys 200 billion dollars worth of bitcoin that could very well happen too, so you are talking about a huge "what if" but you present the title like "it will!!!" so that you get more attention.
This is a method that people in marketing use, it gets more clicks, it is a cheesy and cheap method but it works so well, people are idiots and they click on those big headlines and that gets more attention. That is why I think you can get rich by owning crypto but you may not as well of course.