You have 'zeroed in' on one of the basic problems with the hammock 'concept' for wilderness camping. You need a wind-protected spot to hang.
IMO, there is NO WAY that any tarp pitched with the edges off the ground more than a couple of inches will be stable (let alone quiet) in real (anything more than 20 mph, IMO) wind. And, ordinary tent pegs (vs large boulders and trees) usually will be yanked out of the ground by a snapping tarp.
The same 'rule of nature' applies to dining shelter tarps as to a hammock tarp. In 'ordinary camping' (aka with tents) the usual rule when the wind picks up is: 'Get the dining tarp down'...
BTW, anybody who has spent much time in a sailboat will tell you that in the 'right' wind conditions sailcloth and canvas can be plenty loud, hard-to-handle, and can self-destruct. Lighter fabrics take a bit less air to get moving.
It's not that others are not having the same experiences as you...it's just not talked about much. There was a posting (with video) a few months ago about problems with wind on a hilltop camp in cold weather.