The rider specified certain zildjian cymbals and dw pedal and specific snare. The new drummer brought his own cymbals, kick pedal and he brought a supra snare.
He should have been specific about what drums he wanted in the rider. That's a mistake on his part. Sounds like you had it covered, especially with new heads.
There were numerous times in my last band where we could not bring our own back line. It would be in our contract to use the opening band's gear, or they would get rental gear. We listed everything to the last detail for rentals. If we used the opener's, many times I was stuck with worst bass amp ever...but I kept my mouth shut about it. As bad as it was to me, that was someone's pride and joy.