Is there something systemic behind these frequent incidents with military aircraft? It is using old, legacy equipment? Is it due to using rushed, streamlined procedures designed for war-time even outside an active battle environment? Are there just many, many military flights daily so statistically one will be in the news every couple weeks?
IMO the danger to US service members outside of combat seems way too high. It's a well known fact most fatalities occur during training than during combat. (Sure this due to there being many more training exercises than active combat engagements but from a policy perspective it is very worrying).
https://en.wikipedia.org/wiki/List_of_accidents_and_incident...
It's only notable now because of how safe aircraft are now and how rare these incidents are. Like, of the 116 B-58 Hustlers built, 24 were lost in crashes. Over 200 B-47's were lost during its service life, killing 464 crew members.
This is the first B-52 crash in almost 20 years.
I would guess that when you are training you are still doing activities that are not as safe as just traveling from point A to B: flying low, pointing the nose at the ground, landing a helicopter in a less than ideal spot (it seems like half of those are helicopters), etc. That hypothesis doesn't really apply well to transport planes or B52s though. Military pilots probably spend a higher overall fraction of their flying career as trainees?
The US military has 10-15,000 airframes. The US military trains hard and flies a lot of hours so accidents and failures are not completely preventable. They explicitly plan to lose an average of 2 airframes per month due to attrition, which is roughly their historical average. The crew is able to escape most of the time.
It may seem odd that they plan for these losses but the optimal amount of risk is non-zero. Excessive safety-ism interferes with effective training and operations, which risks lives in other ways. They aren't reckless but over-prioritizing never risking a life in training would defeat the purpose of it and institutionalize behavior that is ill-suited for actual warfare where risk is unavoidable.
Statistically the military environment is quite safe, particularly for young males, relative to the median lifestyle in the US. That is true even in some war zones, ironically.