True, and I think one of the issues with "Smart Guns" as we've seen them is that they aren't really designed by the type of people that keep loaded guns around and think about how to secure them. They tend to be designed by folks that read media stories about unlocked guns.
Were I to design a smart gun (and I'm not) I would think one with something like Springfield or Smith's Internal lock to activate it's "smart-ness" Turn the key one way, normal gun. insert key and turn the other way, internal lock is engaged. To unlock, type four (or less?)digit code in on buttons placed in the grip (ala crimson trace).
I personally still wouldn't buy one as my situation doesn't make me feel like I need to lock my HD pistol at all, but if something like that were an option, I could see some folks buying it. You could even add the "motion sensitive alarm" part the OP's gun has for theft protection.
Some folks would complain and grumble, like they did with Smith and Springfield*. Some folks would buy it. As long as it's an option, not a requirement, more choices are better.
*Does Springfield still do an ILS system? I haven't heard about it in years.