You are obviously not acclimatized to the climate in SE Asia and other countries. Try spending time in Tokyo for example in July and August and working in an office with the temperature fixed at 27C - I guess you would be finding an excuse to drink a beer. Do you really think that the locals would like the temperature set at bleary SOT temperatures? Get real and stop being so critical - it is so boring apart from being unnecessary. In your case stick to Lufthansa if you don't like other options.