I did that too on my first survival build! Excellent I had to build a whole steel funnel to get the rocks to roll to the collector
I will freely admit that I’ve never thought to do this. I almost always start in space, though. It feels easier to not combat gravity and Clang up there.
That said, the Clang and the challenge of gravity feel a lot more fun in the long-run. Like, the best SE stories I have are definitely from screwing around on planets, and random crazy things exploding, or going south in some catastrophic way.
I’ve used this method and like it. Especially for stuff like ice that you need to mine a lot of to fill the cargo.
I’ve done this in space with a gravity generator and a funnel on top of my ship. Then just park it under an asteroid and mine a tunnel straight up.