People plug devices into their computers daily for charging and updates.
They can visit websites. They have a robot vacuum ffs, they have a computer.
And firmware can be updated by Bluetooth from a phone and BT on the vac can be turned off when unneeded.
This reasoning is specious. There is no intrinsic reason for any home appliance to need unfettered internet access. Tech bros may want 24/7 upskirt photos of their users, but we don’t have to accept their requests.
We give up nothing by insisting on privacy in our homes. We can have all the cool things without giving it up.