Earlier quoted context omitted.
Are you saying it is customary to fly people business class in the Valley, rather than coach? Especially for a team retreat?
Are you saying you can fly coach from SF to Berlin and actually still engage in a "retreat"?
If I worked for a big public company, I'd expect them to put me up in business for anything longer than 6h. For a young small startup, I'd expect them to put me in a reasonably convenient economy ticket (e.g. not flying out of OAK instead of SFO, and not forcing me to take long connections, or really ultra-low-cost carriers like WOW Air).