Yes like the barrage balloons during the second World War. But they don't do well in say strong wind, snow or icing conditions. Never mind that they will be a rich target for any bored hunter with a high powered rifle.
At 10,000’ and supposedly bullet proof fabric I don’t see a hunter shooting one down unless he has a howitzer. Something like one of these flew over Camp Victory, Baghad when I was there. Even though we took lots of rockets and small arms fire on base it was never shot down to my knowledge.
“Even a rifle shot through an aerostat will not bring it down, because the pressure of the helium inside nearly matches the pressure of the air outside, preventing rapid deflation.”