I see the pros to the removal of all the secondary components if theres problems with it. However, I may be in the minority here, but I believe my secondary system is working just fine. When I did my injectors and coils etc., I replaced both the vac cans with new, tested units turned the right way of course. In addition to that, I silicone sealed any questionable vacume connections and zip tied all the others with the appropriate sized ties.
My secondary engagement is just about seamless. I guess if I start experiencing problems with it, I might want to do the removal procedure. For now, I'm happy with the whole set up as it is.