I use mentimeter with a big audience (300) and display the questions and possible answers with a projector. Unfortunately, I can only have very short questions/answers, otherwise the font size is very small on the projector. However, there is lots of unused space. A layout for longer text would be great. Move the diagram to a corner (small) and use half the screen for text.
Of course, there are disadvantages of long texts, I know. But I use it e.g. to vote which SQL statement is correct.