I agree with franky1's view on this. Do not listen to those guys they have their own self interest and agenda and that comes first for them.
In the final part of the video it said that the Bank of China is planning to create a blockchain for "digital Yuan". It also mentioned that it is based in Bitcoin's technology. So will it use Proof of Work?
nope, hyperledger again.. based on blockstream not bitcoin -
note1 -
notes2(note 2 more informative but wordy.. note1 summarised and opinionated*)
using POA (proof of authority) which is signing a block by known authorised entities
POA is a hybrid of POS (proof of stake) but without any randomness of users being the signers.. instead just known banker 'notaries'
much more like blockstreams 'liquid'... much less like bitcoin
* opinionated due to "Disclosure: CoinDesk is a subsidiary of Digital Currency Group, which has an ownership stake in BTCC".
* opinionated due to "Disclosure: CoinDesk is a subsidiary of Digital Currency Group, which has an ownership stake in Blockstream."