My problem with "smart optional" devices is that even in that case, the "smart" parts can have knock-on effects.
For example, the AC unit I bought, resets any settings changes from the front panel if you power cycle it, unless you configure them in the web interface.
My new microwave with a "child safety" lock has a button combination you can use to disable the lock, but it forgets that setting on losing power, so you have to perpetually keep the sequence needed around if you ever have brownouts or blackouts.
And, of course, if you just ignore it, it might be waiting for someone to come by with the right bluetooth or 802.11 network or s/t and use any "optional features" however they like...