I'd much rather have an analog controlled radio bulb with dials that I can manually mix the colors with and not have to configure and waste bandwidth on wifi or Bluetooth for something that should be simple with minimal parts. Not to mention the possible privacy concerns.
If you are about wasting bandwidth, consider this :
The messages submitted for the lamp are tiny (3 bytes = 16.7 million colors). Packed in a packet that is transferrable over BT or Wifi would be bigger but still in the kB range at most, and it's one off (on each manual color change), not something that uses the bandwidth constantly. The connection is managed by a BT host or by your wifi router
Using an analog circuit would mean unmanaged transmission on each button press. There is no defined management protocol for that, so you are open for interference with other "smart" lamps or any other appliance that you would choose to build the same way (if a lamp can be controlled by analog RF signal, why not toaster etc). This may become a problem if more "smart" appliances would exist around, and more of them would have the "analog signal" implementation
Also for the manufacturer, it may be more economical to slap in an off the shelf BT or wifi "solution" than build anything analog, especially if the latter might require some individual tuning foreach manufactured unit
I also hate things like Amazon Alexa and Google assistant. I will not allow them into my house. I'd like to eliminate them off my phone too.
Those are not inherent essential part of the technology. You can have a self sufficient and self contained network controlling appliances, without any data exchange with anyone like Google or Amazon. The fact that "smart" appliances actually available on the market are usually tied to those companies is a problem in its own right, way outside of just the area of lighting
I agree with you that i would not permit "open mics" in areas that belong to me
I prefer RF over IR for remote control of LED lighting.
RF doesn't suffer from line-of-sight issues
Being a lamp of all things, you dont actually need it when you dont have a line of sight to it, do you ? (With some exceptional use cases, i can think of a few that relate to security, but they are quite few). The line of sight actually helps the management problem, as it limits the scope of "unwanted" appliances that will also get the signal
I would expect that a strong enough IR transmitter will overcome indirect lighting paths in the cases where needed (where the lamp is behind the corner, or in an enclosed luminaire, etc)