I agree with you. Unfortunately, these videos are not 100% proof for me. This should be more. And I hope that what is there is true. Let the users make more videos, and I want to know how many owners / lucky ones use this service. The team should increase this information, it will positively affect the popularity of this service.
I'm not talking about video. This is not an evidence for me as well. Centra also was making such videos. This must be some announced from real known trusted people in crypto world on big conferences etc. But this videos and posts in telegram just very suspiciously. But as I said good evidence when everyone who want will have their cards in own hands.