2 inch Toyota lift vs aftermarket questions....

I am on the fence about putting the Bilstein 5100's at .85 because it seems that many tacos have vibrations issues after a lift. Especially when going above a 1 inch it increases exponentially. Yet the Baja's and the Pro's doesn't look to have many complaints of vibrations and they use 2' inch lifts... Why is that and what does Toyota do if anything to avoid vibrations???

 

I have the 5100's set to 0 with the OME 883x. They gave me just under 2in. with no issues. The only thing I did out back is the 5100's . So basically it's a leveling kit . I think the problems arise when you start messing with the rear and go over 1in. I would like to know how Toyota gets away with it myself.