Lansdowne and the Aviva had/have it because of houses behind that stand. If the stadium was built up at that point they’d never get natural light.
That stand in Croke Park is Hill 16 and is the home of Dublin fans. When they were redeveloping the stadium the GAA wanted to make it all seated and integrated with the rest of the stadium but the Dublin fans threw a wobbler and it remained as a terrace. It’s also next to a railway line so they can’t build it up too much.