If the travelling public think that customer service is something the airlines are interested in beyond lip service then they are setting themselves up for constant disappointment. I can't comment on the training that a full service airline provide to their cabin crew but in the LLC that I fly for new CC get three weeks of fire hose training for the regulatory part and 2 days for the onboard customer service part. Just like ATMs, self-service checkouts and fill your own tank service stations businesses are not interested in providing outstanding customer service. They are happy to take your money and will provide what you have paid for. With an airline you pay for a seat on an aircraft that will take you from your departure point to your arrival point. If you want outstanding customer service then be nice to those you expect to serve you food and drink. Its just common decency and respect for others. If you go in there demanding outstanding service then don't be surprised at the resultant attitude. There have been quite a few instances where the aircraft have crashed but the passengers have survived. That is when the training and the safety role of the cabin crew comes to the fore. In that instance they require and expect you to follow their commands and they won't be gentle about it.