Linked article says that these alleged "ground bees" are solitary, so unless the deceased golfer did a dance over 20 holes, these weren't bees that did the deed.
Furthermore, what type of bees are "solitary?" It goes against the whole hive mentality. Maybe these so-called "ground bees" are technically "bees," but they are not proper bees.
And don't get me started on "bumble" bees. Mere coloration does not a bee make, at least in my book.
Honey Bees don’t build hives in the ground..Many other varieties of bees and wasps do.