When to use Router context? With Trpc React Query Example

[AshotN]

https://tanstack.com/router/latest/docs/framework/react/examples/with-trpc-react-query?path=examples%2Freact%2Fwith-trpc-react-query%2Fsrc%2Froutes%2Fdashboard.index.tsx

In this example trpc is imported to be used with useQuery(trpc...)

But in the loader it's being grabbed from the router context.

My question: Why send tRPC though router context? Why not just always use it via import?

I tried it on my local and both ways seem to work the same? Unless I'm missing something.

Why use context at all? If we can just import both trpc and queryClient from router.tsx