Not sure if 1/2 years ago, people were into this stack. Now it's kinda popular and people get a lot of stuff around that makes it viable: headlessCMS, easy to deploy platforms, more enthusiasm towards PWAs, simplified universal/SSR (not only SPAs) etc...
A lot of tech is released daily in the JS world. But all of it do not always last.
But here, the JAM stack is kinda welcome by a lot of people and will probably last. I mean, it's like GraphQL, it wasn't released a week ago but it's still considered as 'new' because it get past that initial hype train.
I think what he's saying, and I second it, is that there is nothing, not a thing, new here. Unless you're excited about generating static pages ahead of time. As far as "there's no db to query". Excuse me, if you're using an API, there's dbs being queried. And how much utility is there in using only 3rd party APIs? If you're doing something real, then you're writing the API, so you do all the server stuff. This architecture is known as client-server, it's been around a long time.
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