This aint a big issue. You dont have full disk encryption on a lightbulb so of course the wifi password is going to be recoverable. I often find it funny when asking for the wifi password in some places in asia when staff insist on entering it themselves so you dont tell freeloaders or chinese, the network manager prompt confuses them briefly but they continue, but then I turn around and say ah so coffee2019 was that difficult to communicate - shock. Even on windows it's a mere powershell command away