Your own refs point out it is usually not a problem, and there are very low occurancy rates. The situations it’s a problem, it’s obvious that there was a severe break.
The folks seeing higher rates are seeing them because their samples are coming from data sets with specific trauma backgrounds. Which is not surprising. If you look at postmortem results for people who died with broken bones, those folks all had severe issues! They died.
Probably none of them caused by getting their arm slammed in a car door, for example. Most likely caused by long falls off ladders, or car accidents, or industrial accidents, or getting beaten to death, or shot, or any number of traumatic events.
If you look at a dataset of all broken bones (which will be difficult to do frankly, as 90% of them won’t even show up in a database as they’ll be handled in an outpatient setting), the numbers will look wildly different.
In this situation if it was serious they’d just get medivac’d then. Which is not going to be difficult in this situation. If someone gets hit/run over with a vehicle, or hit by machinery, or has a giant pile of lumber collapse on them, or whatever, it’s not like anyone is going to tell them ‘oops, nothing we can do!’.
It’s mud. It makes walking and driving difficult. It isn’t going to make it hard for a helicopter with a decent pilot, especially with a helpful ground team. Reno has a very good medical center (several, actually).