This is true, but I want to point out that conventional DBMS DDLs are horrible schema definition languages, yet are placed at the center of schema design by the DBMS.
They are horrible because because they hopelessly mix in all kinds of other concerns -- which is also why they are difficult to avoid.
IMO, where a schemaless database like this would be useful is not to avoid having a schema, but to allow a clean source-of-truth schema to be used, independent of all of the other concerns related to data access and storage.
(I'm commenting generally, BTW, not necessarily on this particular schemaless database.)
They are horrible because because they hopelessly mix in all kinds of other concerns -- which is also why they are difficult to avoid.
IMO, where a schemaless database like this would be useful is not to avoid having a schema, but to allow a clean source-of-truth schema to be used, independent of all of the other concerns related to data access and storage.
(I'm commenting generally, BTW, not necessarily on this particular schemaless database.)