It does seem a little silly by itself, however in the context of a smart room that automatically turns on the lights when you enter, I can see their thinking. Having said that, I think the intelligence should go into the light switch, not the bulb, as it makes little sense in terms of "green" technology to throw out an electronics package when the bulb burns out. We do this now when CFL bulbs burn out; there needs to be a better way.
Ultimately a low voltage intelligent lighting system would be the way to go. Place all of the electronics and LED drivers in the fixed occupancy sensors, leaving the LED lamps themselves as just dumb emitters. This is better in terms of reducing landfill waste, reducing energy consumption (one step-down system instead of many) and even reducing the RFI generated by all of these systems.