This leads to 'fixing' the amount of text areas it needs to fill, so it works to a constraint of having to fill a collection of text areas instead of outputting the message that would otherwise best suit.
My way to combat this is to start by refining the words/messages to be put on the canvas before letting the agent try designing something.
As they say, to a hammer, everything is a nail.
Initially it feels like the result will be too empty, but once the greebling is removed it most often looks better