they still run a bloated operating system that occasionally crashes. The TV can still be smart and at some point I expect them to nag you constantly about not being connected.
That's my problem with them. The smart TVs I've used are slower to startup than the dumb ones, even when not using the "smart" features. Just changing the inputs is often painfully slow.
That's a good point, i still consider dumb when no smart os is installed.
Some smart TVs will scan for open wifi networks and connect to one they find.