You seem to assume other people have had little or no experience with consumer electronics and networking. Perhaps you should rethink that assumption.
19% of Wemo smartswitch purchasers on Amazon give it one star - 1 out of 5 people. Kasa's one star are only 6% of reviewers. That is a major difference that's too big to be accounted for because some people are "vocal" about product problems.
Nor was it a "technical issue with something in the implementation on your premises." Nothing in any environment should be able to cause a Wemo switch to come on at random times each day without being programmed to do so. Nothing in the environment should be able to cause it to just lose it's ability to connect to the router until it's reset.
I've tried these switches in multiple homes, with multiple ISPs and multiple routers. Same flaky issues.
By contrast TP-Link switches in these same environments work perfectly. Wemo products are too unreliable to be sold as consumer devices.
Ive used these Kasa ones for a while now with no issue. They respond fast and have their own app if you don't use an echo/home.
They also have a smart powerstrip that lets you independently control 6 plugs if you want to control A/V setups or the like.