Comment (by tootle):

As I said, no issue with excluding this line since THC is not part of the toolkit. I have provided in the documentation details related to what needs to be handled by the EOS manager (or by a third party thorn such as kadath_pizza).

I will look into the hooks you mentioned as I'm not familiar with this.

--
Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2692/inclusion-of-fuka-importer-thorns