I don't believe that's a safe assumption, given what I see on the FB jeep groups, but also simply based on the replies in this thread. There are different classes of vibrations & wobbles, and depending on what you've personally experienced it is easy to think you've encountered one when you actually encountered another. Several of us have lived through a thing you can't throttle out of, which is why we tried to drill into your specific experience, but you weren't super interested in that line of questioning.
truth. If I had a nickel for every time someone used "death wobble" for just an annoying wobble or shimmy that's hard to get rid of, without realizing the "death" part of the name isn't actually hyperbole.
It seems like you just wanted to tell us about the importance of axle alignment (is this what the shops call "thrust angle?"), which I don't think anyone here would disagree with in the slightest. It's definitely not talked about much, but with as many people running adjustable arms all the way around, I'm sure it's actually a much bigger thing than people realize. I know I've never measured mine. ¯\_(ツ)_/¯
I always thought of thrust angle as specific to rear axle as it contributes to "dog tracking" where the vehicle looks like it's running down the road sideways. I think the front axle being out of square would show up as a pull, if at all.
Whatever it does I'm sure it's another contributor to people using "it's a jeep" to excuse poor road manners. Checking axle square to frame and to each other has always been the last step in my alignment process but maybe it's not as common as I'd assumed.