Unfortunately due to IT lock down I cannot use Pharo at work,
but the first 1:30 of video [1] demonstrates a nice use case to aim for DataFrame + FastTable.
Similar functionality in Pharo would make a compelling video, to the degree it may even be worthwhile including this out-of-the-box to make a great "first ten minutes" experience for newcomers, or at least a one-click install from the catalog (linked from the help file).
What parts do we have for putting together something like this?
cheers -ben