Not exactly. I have purchased DBA slotted rotors (substituted as the cheaper Bosch rotor was not in stock) and they were combined with Bendix Euro pads at the rear of the bus (D4).
DBA Brake Rotor Slotted 4x4 T2 Rear Pair DBA2095S | Sparesbox
I have had no problem with them at all. They have bedded well and cause no noise, very little dust and so I couldn't complain. Do I think I need slotted rotors? Hell no. But I can't complain about them either as aside from a likely increase in pad wear, they're not causing me any ill-effect.