Honestly, most consults are just sales pitches, sounds like you got lucky with this one.

Ngl, that exact thing happened to me a few years back with a 10x10. Thought I had it secured too, but those little stakes just popped right out of the ground like they were nothing. The frame bent on two corners and one of the crossbars snapped clean. Bent it back with a pipe but it never sat right again. Yeah, the screw anchors are the way to go, but you gotta twist them in deep, not just hammer them. I also started crisscrossing the sandbags over the leg plates instead of just setting em on top, seems to hold way better. Wind is sneaky like that, itll find any weak spot you got.

Cursing at stud finders sounds about as fun as trying to flip that winch solo, @daniel474.