Currently, there are no options for sorting facet links by the weight of taxonomy terms in the facet settings page. I am using Search API that supports hierarchical indexing of taxonomy terms as mentioned by cpliakas here, but it doesn't seem to make them to follow the order of taxonomy term weight.
I have been searching for solutions for awhile but nothing helps. Is it a feature that needs to be implemented by Facet API?
Sorry for my bad English, I hope you understand what I mean. Thanks!