I think the airlines have shown themselves to be motivated purely by money throughout the whole pandemic.
They were going crazy during the peaks of Covid demanding that people fly all over the world without precautions.
No, they were asking for sensible precautions and no stupid rules such as 3 compulsory tests within a week at a cost of £100+ which went straight into the pockets of Boris's friends' wives. Tests that no one checked. Tests that more often than not weren't even posted on time, let alone analysed before the quarantine period was over.
They were asking for the government to adopt sensible rules and recognise all vaccination certificates, including those not issued by the NHS.
They were asking for an end to endless isolations for negatively-tested, vaccinated people returning from countries with less Covid, when the British public was free to take their mask off and attend mass events with not as much as an LFT required.
I'm no capitalist or fan of the airline business model. But most countries managed to avoid such chaos by running a good number of flights all throughout the pandemic, instead of at every step reacting late, reacting badly, and having their governments turn a blind eye to science, and to the needs of some industries.