First, Natwest don't say anything about this situation on their
announcement page so I don't know legit is the news and if it is the truth the reason behind their ban of the crypto-related transaction will definitely be their unsettle money laundering accusation but Natwest wasn't the first UK Bank to ban their business account holder customers from accepting crypto-related transactions and if you ask people from the UK or do some few research online or this forum you'll find out some banks in the UK have already don't that before now but the news about Natwest ban was known to the public because of money laundering issue
Institutional money will never overcome these obstacles but I don't see other banks with clean records follow the suit.
"According to a Guardian report, the bank’s head of risk Morten Friis told investors at an online event on Wednesday that NatWest has “no appetite” for dealing with customers whose main business is backed by the exchange of crypto."
The guardian is fairly reputable and there is most likely a copy of this online event recorded for investor purposes. If the head of risk is saying that they have no interest in supporting business customers who are using cryptocurrency, then that will filter through to their account management policy. They may very well be reaching out to customers and trying to handle the situation delicately as they close any accounts.
An unexpected decision. The pound's liquidity cannot be compared to the US dollar or the euro, so they are managing businesses in their country with just the pound. The adoption of cryptocurrency or Bitcoin will only make managing their currency more difficult. They only hedge against the risk of losing the liquidity of the pound worldwide.
Err, yes it can. The pound is very liquid and is held in many currency baskets alongside the Euro and Dollar. Of course they will primarily manage businesses in the currency of the country they are based, how they are hedging the pound is totally irrelevant to this news. It is not totally unexpected because other banks do operate a sort of grey area and have been known to quietly shut down accounts that have been found related to bitcoin transactions.