Originally I thought the same as you, but when I tried it, I noticed that it actually saves way more time than I expected.

I think we simply don’t notice the amount of time spent on the little, meaningless things. For me, once things were connected it kind of felt like I had aliased a commonly-used command.

You could also argue that the saved time was already spent in researching which smart home appliances to get (bad ones can be a flaky nightmare), which is a fair argument. For me, though, the increased convenience in actual day to day use was well worth it.