Originally posted by Honorable_D:

I still hope for an upgradable Wisplight one day though.

I'd take an upgradeable torch which repels mist in a larger vertical area, so there would be no need to construct a tower or pole or such for that purpose. Horizontal areas can simply be covered with more torches after all.

But yeah. The patch notes say "Mist torches are no longer a primary target for enemies". I don't know what's the exact difference between primary and secondary(?) target but it seems to have made them to be effectively ignored.