There are techniques? I gave up after the fourth or fifth paragraph of hype. I suppose there are enough Javascript haters here to take the bait, but I've learned that when someone has to tell you how great something is a dozen times before they tell you what it is, it probably isn't.
I don't think the target is Javascript haters, as much as the developers who feel like Webpack'ing all the things is a bit much for most apps. The technique is delivering HTML partials over web sockets in response to events, optimized via DOM-diffing.
Obie Fernandez is a bad ass. He is not hyping anything he is describing his journey. If you knew who he was you would know how much weight that should carry.
It’s not an appeal to authority to listen to an experts journey through new emergent technology and how that has shaped their own professional achievement. If anything that is the sole example of when expertise and authority is really valuable. And discounting most of the article because he says “mongodb was awesome” and “server less was awesome” and “stimulus is just as awesome” is losing the value he offers
Stimulus Reflex is picking up a lot of steam among Rails developers. It's not novel - it's the same approach being used in LiveView in Phoenix, Blazor in dotnet, and LiveWire in Laravel. (Details vary a bit, but basically DOM diffing over web sockets, with HTML being rendered on the server as opposed to heavy client side logic transforming JSON/GraphQL)