Until an update or reset switches it back on, or an app or system feature requires you to turn it on, or you buy a device and forget about it, or you're just not aware of the feature at all.

I can disable it this time because I got lucky and heard about it happening.

There's no assurance that I'll hear about the next invasive feature, which is yet another security risk in my network that I need to be aware of.

Yes, by not connecting amazon devices to my network