It's really a good project development.
However the risk includes.
Volatility:this means that Bitcoin value can change fast which make it uncertain.
Security risk:means they can hack your Bitcoin wallets
Regulatory uncertainty:when Bitcoin laws and regulations in that nation are been change it can affect the use and the value.
Loss and access: when someone forget his password or his private keys it can lead to losing his Bitcoin.
These risks I mentioned are the important of caution before engaging on Bitcoin.
It's good to have solutions for the underbanked or the unbanked but security of people fund is vital concern for everyone. If this solution - I am not sure - is easy to access, but also easy to lose your fund, it's crappy.
As I said, I did not watch the video to dive deep in this given solution as watching a video is time consuming, but temporary solutions for the underbanked and unbanked in many countries in Africa continent are very popular, even they are not good in security.
It can be P2P trade on third party platforms that provide Escrow services like Paxful, Noones, Binance and more but they must keep their coins on those platforms that are centralized.