After all of that discussion of very Postgres-specific limitations, they blame SQL? SQL is just a notation for relational algebra. It is not the problem here. There are better, distributed, scalable, write-optimized implementations of real SQL out there. Disclosure: I work for a company that makes one.
We did not mean to blame SQL more PostgreSQL specifically. However in our case though we want to build our infrastructure on Open Source components since we are an Open Source project and provide on-premise installations in addition to our cloud hosted environment, so we do not want to depend on commercial databases.
