be aware that BA is pretty much an anti-commuter company. They will treat you as a child and dig up into your commuting habits (if they believe you have arrived at Heathrow in the evening too late before an early report the next day, you’ll get a phone call).
That’s not really true though, is it? BA have a number of pilots who commute from as far away as Australia, South Africa, and the West Coast of Canada and the USA. Plus very many other countries. Many union reps do! Provided they are sensible, there isn’t really a problem. Comparing those travel arrangements to people who commute by car is also a bit lop-sided. Those who commute by air, generally do so almost exclusively facilitated by British Airways themselves. These arrangements leave a footprint, easily audited by BA. Indeed not doing so, may lead to BA leaving themselves open to criticism. Is it any surprise in the post Colgan world, that BA occasionally peruse a small sample of employees’ arrangements? Of course all employees should never forget they work for a London based airline.
Incidentally. I thought the rumour was that recruitment is being significantly scaled back for 2020, and potentially beyond. Make of that what you will.