Zeffy:
Unlike an ILS, an airplane flying an RNP approach may encounter an RF leg in the final.
The RF leg may require significant bank angle. (Not the case for this approach, but the issue remains applicable.)
The "down wing" on large airplanes can extend below the normal gear height. So appropriate allowances must be made.
The wingspan aspect of 8260.52 has been questioned by not a few folks, at least for larger RNP values.
I guess if the procedure is only RNP 0.10 and the FROP is at minimum distance then the large bird's wing could drop below the VEB and in extreme circumstances dig into the dirt in a maxed out obstacle environment. We wouldn't want a 747 doing that and not even (I guess) a 380.
