What is rubbish about pointing out how two different airlines manage to provide the same service to a completely different standard with the very same crew complement?
Drinks services only are provided by both AA and jetBlue on short domestic flights; both flights were the same duration. jetBlue crew presence in the cabin was continual and no trolleys used; AA crew retreated to the galley after a trolley service.
This applies to BA - though a different service from US airlies, crew complement and direct comparisons of service between LH and BA are entirely valid.