To be fair, I think the adoption of Golf tags was in 12/2012, almost 2 years after this was mapped[1][2].

I don't know how to use JOSM and I can't distinguish tees from pins with sat img unfortunately :(

[1] https://wiki.openstreetmap.org/wiki/Proposal:Golf_course
[2] https://wiki.openstreetmap.org/w/index.php?title=Key:golf&oldid=843334