They talk about maintaining Python, which includes things like preparing and managing releases. Why would you need more than a few people to do that? The core language itself also evolves at a slow pace (which is good), it's not that there are tons of new features every year that get merged into the codebase, so a few FTEs is probably adequate to handle that kind of work.

Considering the larger Python ecosystem the community does a lot of the work, so saying there are only two people working full-time on Python is quite misleading IMHO, as Python has probably one of the largest communities in the world for a programming language, the Github repo alone lists almost 1.500 contributors.