I'm not advocating offering bad service or neglecting passengers. But having grown up working in restaurants and as a former proprietor or drinking and food establishments, I can attest to the need to find a quiet spot to get away from people for 10 minutes on an 8 hour shift. There's an old adage in this line of work: 87+% of customers a fine. 10+% are amazing and if you only had those your day would be awesome. Less than 3% are essentially evil and getting one of those in your day will ruin it completely. So the probability of getting one of those <3% on a plane with 200 passengers divided by 4 crew is elevated. Also in the realm of possibility is getting multiple on a flight, and if I were an FA, would put me in a position to want to smash the cockpit door down and take the plane down and everyone with me. As you may have garnered, I am now too seasoned to be put in customer facing roles for more than a few hours.

Most jobs in the same pay scale, would legally require 2 x 15 minute breaks and a 30 minute meal break on a shift like that.

In all my personal flying I can attest to witnessing waaaay more incidents of bad passengers than bad crew.

So yeah, I have sympathy for crew in these cases.