pgbackrest also was part of an organization from what I understood from the post. The organization got acquired. I don't see how sqlite is shielded (or any project really). They could get acquired. They could not have enough customers. They could go the wrong directions and lose customers. They might have a few high profile bugs so that customers lose faith in them.

PGBackRest was sponsored by some specific organizations, but not owned by them, and PGBackRest was not their product.

SQLite is in a whole different league when it comes to funding, corporate support, etc. There are commercial contracts directly tied to its ongoing support and development. As far as I understand SQLite is Hwaci’s bread and butter.