Most teardrops are low to the ground and, at least in one direction, most are aerodynamic; so, I doubt there would be much of a problem unless a tornado hit one. When a tornado hits a house, the house has no defense; so, I doubt a teardrop would fare any better. Those cork screw anchors would get pulled out in no time. They are no match to a tornado or hurricane.
My roof lifts up and, if the winds are bad, I either don't lift it up or I put "worry straps" on. (If I can, I try to angle it out of the wind.) I would think that if anybody were going to have a problem with winds, it would be me. It's been on the road since 2011 and the roof has been up in some pretty hefty winds, without any major problem, knock on wood. The "worry straps" help make a person feel better, as long as you don't mind the wind playing the straps like a didgeridoo.

I don't use them much; but, If you squint a bit, you can see them in this Nebraska picture, below:
