I thought about this as well... I hadn't thought about the flammability or eco footprint, but had thought about whether CC BB objects would still function with the new billing system for tracking water and electricity usage. Will a CC sink for example register its water usage for your bills?
I feel like CC wallpapers and floors would probably still function, just without an indicator one way or another for flammability and eco footprint... Maybe they would just be neutral?
It would be interesting to get the thoughts of some CC creators about what impact they think the update might have since they know more about how the code works in their CC.