To put your mind at ease, there is no Danger.
It is true that broken axles are more common with 8s freewheels, but broken axles don't lead to any consequences, and in most cases are not noticed at all by the rider, and only discovered when removing the wheel to change a flat, or diagnosing a strange click or noise coming from it.
When the axle breaks the wheel stays put and turns because the axle is supported either by the nuts at the ends or the QR running though it's center.
Lastly, since the vast majority of axles don't break, this isn't something to fret over, unless this bike is intended for long distance touring in remote areas. Then the remedy isn't to replace the axle, but to carry a spare.
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FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.