Sorry, but this is a very misleading post to have in this particular forum and it is going to confuse a lot of people.
We spend a lot of time in this forum helping people understand the basic concept of how their SmartThings system works. Videos of this type are both imprecise and confusing in this regard.
First, let’s get one thing very clear: it is impossible to “pair” a lock of the type shown to echo. It doesn’t have a Z wave or zigbee radio. Instead, you connect your Amazon account to your SmartThings account and pass requests made to the echo over to the SmartThings cloud. That’s a really important difference, and we work hard in this forum to make sure that people understand that difference.
Next, these videos will trigger someone’s Amazon echo. That’s both annoying and in some cases unsafe. So you should always have a warning on the video that that is going to happen.
Finally, these videos only demonstrate the native echo features, which is why you say that it is not possible to have echo unlock the door. However, there are indeed many ways to have echo unlock the door if you have SmartThings. I’m not saying that everyone will want that, but absolutely it can be done. And there are multiple threads here explaining how to do it. It’s a very good demonstration of the power and flexibility of the SmartThings system. So it is inappropriate to have a video in this forum which tells people that they cannot do it.
That in itself might cause someone to decide not to invest in either the echo or the SmartThings system when this forum should be exactly the place where they come to find out that, yes, there is a way to do it.
For example, I myself am quadriparetic and physically have a very difficult time moving the interior turnbolt on my front door. I rely on home automation to be able to do this kind of thing by voice. If the first thing I had discovered was your video, I would’ve been very discouraged and not moved forward with a feature which has turned out to be extremely helpful in my every day life.
I suggest you restrict your general interest videos to your own website if they are going to just cause confusion for people who come to this forum. If you develop some which in fact showcase the true power and features of the SmartThings system, then I’m sure those will be very welcome.