There's something wrong with the list. It's ostensibly sorted reverse chronologically but scroll further and you'll see it go from 2020-03-03 to "9 months ago" and from there on it's all him.
Judging from the graph view (https://freenginx.org/hg/nginx/graph), it has to do with the QUIC branch landing onto the main branch, suggesting he had little role in the QUIC development but heavy role outside of it.
