This seems promising - more than anything I like that there's very little magic. With that said I honestly find it significantly easier to reason about / debug traditional control flow logic. As soon you introduce these frameworks it raises the complexity of your app 10X.
This might be warranted when you have swarms of agents but I don't think anyone believes the models are close to that level of capability yet. But the LogFire integration does seem useful.
Just for fun I rewrote their example using a basic query classifier + regular control flow. Personally I find it much easier to reason about.
https://gist.github.com/Filimoa/bd883bbbd6475993f3f6d2621275...