Edit: Apparently I was wrong; this is intended. This is a false report; I thought on Java Edition that lava buries the end of basalt pillars, but I was wrong. Any moderator out there that could close this report? Thank you!

O.G. Description:
Very self-explanatory; basalt pillars that generate above/on lava stop on the surface of it. On Java Edition this used to be a thing, however, it lingers in the Bedrock Edition.