Most home/consumer routers lack the capability to throttle a specific device, and most consumers wouldn't think to configure this if the capability was there.
There's a good argument to say that they should be throttled by their own software, but the basic premise of the issue is that IoT software is badly designed, badly programmed, and badly maintained, so I wouldn't hold out much hope of throttling in the device itself.
Most home/consumer routers lack the capability to throttle a specific device, and most consumers wouldn't think to configure this if the capability was there.
There's a good argument to say that they should be throttled by their own software, but the basic premise of the issue is that IoT software is badly designed, badly programmed, and badly maintained, so I wouldn't hold out much hope of throttling in the device itself.