Perhaps another view: the interesting thing here is that IBM has accellerated three functions that are somewhere near the top of what data scientists do every day. According to the last Kaggle survey, 65ish percent of folks use linear regression. Now that's substantially faster, and much lower impact on a data center.
Volta GPUs are super fast, and the way IBM builds these systems gives you the ability to move data on and off of them at very high speed. The servers also give you coherent memory support across the GPUs and system memory; I don't know how much that helped here (and I should probably go find the paper on arxiv.org to see if they show their hand), but it seems like that solves a gorpy computing problem.
Nice to have options, even if you choose not to buy one or, as in this case, four.