No, they are remarkably sturdy. The ruskies use them on some atrocious rivers, often carting hundreds of litres of gas as its three days up a river to spot 'X'.
But yes, they can wrap, just like all inflatables. But running twin tubes makes them an awful lot more resilient when the shit hits the fan!
Here's something to whet your appetite:
https://www.youtube.com/watch?v=ZxsOEqGUxWg&t=196s
Also closer to home in Jap country: https://www.youtube.com/watch?v=od4fukQsZfs
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