Earlier quoted context omitted.
Most (all?) washing machines have a delayed start. Why would you want your clothes to sit wet, collecting mold, before the drying begins? See, part of being a good programmer is figuring out a solution using the tools you have. Which includes figuring out how existing machines address your issues without requesting they come with a fully programmable API and wi-fi, just so you can delay the drying cycle.
I get the best drying if the machine washes, drains for a bit, then starts drying after that. If I were to do this it would take 4 trips to the washing machine because they didn't think to make it tick over from even washing to drying.
Thinking you can dry your clothes better than the people who engineered the entire machine and wrote its programs is honestly cracking me up. Do you think the vendors were like "you know what, we don't need this washing machine to dry well".
Even more, what kind of a marketing campaign would such a scriptable machine even have?
"Our washing machine dries really poorly, but we hope every stay at home mom can script it to dry better, so we included a web server and a REST API with it".
They'll go bankrupt, man.