Has nothing to do with lean angle of bike. if you look at the bike from either front or rear of the bike and look at how much mass of the bike is actually beyond the foot of the stand, you can see that it is possible for the bike to actually fall to the left, over the top of the stand. happened to many on here.
when you compare it to other manufacturers stands the foot is alot further away from the center mass of the bike. the original RSVR stand looks almost vertical. the moded stand dosn't alter the lean angle of the bike but pushes the foot further out. i tried gently pulling mine towards me over the stand while on a flat concrete floor and was amazed at how little effort was required to get the bike to fall over the top of the stand. imagine adding to that a slightly less than flat parking area and some wind. new plastics are a lot dearer than a modified stand.