The difference being that these projects had the restrictive licenses from early on. They did not change from permissive (and in the context of web service infrastructure GPL is actually a permissive license) to something more restrictive.

On the contrary Qt changed the license from GPL to LGPL what definitely helped the proliferation (and the survival after the Nokia disaster).

MySQL ... well moving this to AGPL would give MariaDB the final push it needs (if it still needs one). So they just let it rot.

Too bad there was no equivalent project for BerkeleyDB.