There's another theory circulating on the redundancies. It's paywalled in The Telegraph though.
DP World's principal investor, Sheikh Mohammed bin Rashid al-Maktoum (Dubai's ruler) has reportedly developed a grudge against the UK after the UK High Court ordered him last year to pay his estranged wife £550 million for her family’s security and maintenance. She fled to London in 2019 saying she feared for her life and was the youngest of his six wives.
https://www.telegraph.co.uk/business...tle-po-ferries