There should have been a few more by now but they keep getting delayed. Overall though, I think FH might have been made worth developing because of Europa Clipper, NSSL launches and Dragon XL despite not necessarily making back R&D yet. Falcon Heavy is easier for risk averse government agencies to choose.
Remember that Lunar Starship winning HLS was not at all expected, most people assumed NASA would consider it too radical, going for the other more conservative proposals.
In that environment, FH offers best in the world capability at low costs while still being pretty close to what people (especially uninformed politicians and bureaucrats) think of as a rocket.
Remember that Lunar Starship winning HLS was not at all expected, most people assumed NASA would consider it too radical, going for the other more conservative proposals.
In that environment, FH offers best in the world capability at low costs while still being pretty close to what people (especially uninformed politicians and bureaucrats) think of as a rocket.