Looks like they have built on the spectral analysis capabilities in their MDO-2xxxEX series! That instrument seemed to have very impressive spectrum functions (better than older FFT implementations), and I was tempted to purchase that when it was released, because it could do what most swept spectrum analyzers could not, at speed and very low frequencies, no 9kHz limit etc.
I think for certain users, it could be attractive to have a 'scope with this level of Python capability, e.g. schools, where you could automatically upload measurements to be checked, or for testbed automation. I kind of wished Python was offered in more instruments for use for small bits of scripting.
At one org I worked at, the devices they sold (not test instruments) had embedded a couple of programming languages built-in, and although most users never touched those, they were great problem-solvers occasionally. Sometimes customers would have feature requests, and some of those could be solved by creating a script (or as a stopgap until the feature was more formally introduced). A simple example was building in a menu so that users who remotely connected to the device would see a menu of options that made sense for them. Another example was checking the filesystem for error logs and automatically sending an e-mail.