Mmmm. No. It makes sense into context of the example, but this is way too generic advice it's actually bad.
Pipes are awesome. Please _do_ pipe results into the following function when it makes sense to.
I think they specifically said, when piping, don’t force functions to handle the error of the upstream function.
Because each error needs to be handled differently, the downstream function’s implementation becomes tied to the upstream function. Then the downstream function is only usable with said upstream function.