I have thought the same question. *why*
One reason: I have an 'Ott Lite'. It uses a real glass tube, and if that thing falls, *POP*, and I'm vacuuming the whole room where that thing was when it shattered. I would be happy if a 'smart light' broke, because cleaning up after it falling would be a snap. Definitely quicker than vacuuming up a shattered fluorescent tube, and finding shards for days afterwards. (Sometimes in my feet)
Second reason: It's likely to be lighter. Not a bad thing. I mean, the base should be 'heavy', but given point one, it's not a deal breaker.
Third reason: Dimming. I really have issues with this current light. I can't dim it. I get BLAZING OTT LIGHT, or *nothing*. It's almost like those old 'cops and robbers' movies where the cops bring in a searing bright light to 'sweat out a confession'. I'll pass...
Fourth reason: This is a stretch for me, but you can change the color temperature of the light produced. No lights when I was growing up had that capability. I think I'd probably spend the next half hour playing with the different light 'temperatures' just to see how they change the world I live in.
I was rather bummed that it was 'unavailable'. I could see it being a usable light for ALL of the above reasons, knowing that I'll probably find a 'temperature' and a 'dimming', and never change it. It's still a lot more usable, and safer than the alternative I have.
Why not a smart lamp. At least in my case... I'd buy one... (I won't buy the Dyson light. Sorry)