Thinking in terms of the average consumer, I think cybersecurity isn't a major concern, but the hassle of setup is. Most people expect an appliance to do its job with minimal fuss. (This can lead to problems, like how car owners can ignore oil change reminders and disable lane keep assist.) But in general simplicity is a good thing - it reduces the mental overhead needed for home life.

For appliance makers, they need to have a better selling point for connectivity. Only a few appliances benefit from automation and remote commands (like thermostats and some light fixtures). Other appliances, like ovens and clothes washers, require physical presence at the start of the cycle, have a predictable runtime, have simple interfaces, and can't predict failures (due to a lack of sensors and cost of further firmware development). So connectivity isn't beneficial.