The blog post itself makes a point of running this on a dedicated instance, so you’re already shipping data somewhere, and it’s not that unreasonable to assume

The blog post itself makes a point of running this on a dedicated instance, so you’re already shipping data somewhere, and it’s not that unreasonable to assume that pretty quickly you’re going to need/want to start performing transforms on the data to get it into a more appropriate schema for analytic queries. Synchronising the data can be done in stages as well. Daily loads are pretty straightforward and usually small/straightforward enough to get going quickly and maintain. As your needs increase you up the frequency or start employing more sophisticated methods.