Not talking about long distances or as a piping network. As I said in an earlier post "a block".
It is a useful alternative for wooden pipes in the fairly early game since it will never spew items all over the place, and can filter items (a single item only) like an emerald pipe long before you have access to emeralds. It is also avail before you have redstone, as is needed to do what you are talking about with storage drawers. This is a way to get some reliable automation prior to redstone, gates, emeralds, steel, osmium, etc... which are needed to access the "better" alternatives.
Look at the example I gave. Sure, I could use a wooden pipe there with a wooden engine and a lever... but lets see... now it's 3 blocks, does not buffer anything, once all the destinations fill will dump item entities to the ground. Less than ideal.
This is a modpack that can be slow to develop. Any trick that can enable automation earlier is potentially useful. You may not think so, but hey, to each thier own.