Another key and often overlooked point is that the BDO opinions have been unqualified since 2018. This means they have obtained evidence to the extent they are satisfied the accounts give a true and fair view since 2018 as well as before. Granted the only issue that would have possibly impacted on the true and fair view is the Etihad funding, in my view (and I am not even sure of that), but they wouldn't just have relied on management representation. They would have obtained confirmation from ADUG and, probably, Etihad as well.
If management, ADUG and Etihad can convince the auditors, who can be ruined if they get this wrong, that the accounts give a true and fair view, they shouldn't have any problem, possibly with BDO assistance, convincing the IP.