True. But it has nothing to do with cricket. The pointy tip is only there to give the stump the minimum strength required to stand upright all day without interruption. If you could trust they could do so without it, then it'd be a flat bottom. At that point, any impact would be sufficient to dislodge a bail. The pointy tip isn't even acknowledged as part of the stump.
It has everything to do with cricket and what is being discussed. Because we live in a world of reality and practicality, not a world of fantasy. You stated that contact with the stumps at the bottom would result in a bigger impact that if at the top. This is not correct.