craigh/Tag — comment on commit 6e27adac8ff1042a2321af54ded169bb9bb0e471
File: src/modules/Tag/lib/Tag/Installer.php line 72
By Portugao:

No, you understand correctly. I'm working on Eternizer, an old style module, so that way cannot work for you, I think.

So indeed it's very strange that updateSchema does not work.