Thanks, Paul. So it's not just me ...
Padding out would only work, if the height was known, wouldn't it. What I do, is to add an extra row and put the last row of text in the high column into that extra row, and the text of the other column at the bottom of that extra row.
I use this for offers and invoices, where the description is in the left column and the price needs to be at the very bottom of the right column.
Where I run into trouble with my method, is when the cells have margins. Then the added rows have too much spacing, and I have to set margins per added row which can become a big mess when there are many rows and I need to change something.