i believe they are not offering totally free services here. you have to pay for some of them.
if they will offer an absolutely free crypto education, how can they maintain their operations? they need to earn somewhere..
Then they should not said this
We need to reach new people and give them the most relevant and updated information for FREE!
I think they can get funds from advertising or donation. Though I failed to enroll on the course so I can't check the content whether it's already explained somewhere or not.