Nah this looks pretty orthogonal to that. This just looks like a collection of pure python libraries for doing common quant work. The thing Cal Peterson is describing (which is pretty transparently JP Morgan's Athena) would be SecDB at Goldman and would be running on their proprietary scripting language called "Slang". None of that is open source.

Goldman was the first place to do a system like that, and when it was copied at other investment banks like JP Morgan and Bank of America, they opted to use Python instead of an in-house language and so "bank python" was born. Actually, the banks all poached engineers from one another, so many of the people that built the system at one place ended up building it again at another, hence why there are so many similarities between the equivalent systems at all these US investment banks. Some of those people eventually went on to build it again as a SaaS offering: https://www.beacon.io/