In addition to figures, plots (bar chart, scatter plot, or timeline) are frequently used in more information-rich blogs (ex. http://www.informationisbeautiful.net/, http://www.smallmeans.com/new-york-times-infographics/) or other documents to illustrate critical points.
Whenever I used word to add a chart, one of the biggest issues I had was that when a plot made in excel was added, if I ever had to change a graph after adding it in, so that I could write about it, I might forget to update the figure in word. Additionally, plots are less interactive when they are images and most likely take longer to load.
Matcha's mdd format is perfect for this task because you could have a source .csv file stored in the MDD folder, plot it in Matcha, and update it as needed in Matcha or the .csv file, and automatically have the plot updated in Matcha. Moreover, using Matcha, you could insert data for plotting, and generate a .csv file that can be edited later. Therefore, I would suggest that Matcha integrate a javascript-based plotting library like https://plot.ly/javascript/ or https://d3js.org/.
