Since it's a binary add-on it needs to be compiled and published by the distro that provides Kodi, hence it's in our repo. However the correct place to report an issue is the add-on support thread in the Kodi forum. Or if you are capable of providing an insightful issue report with a decent amount of technical detail, the GitHub issue list for the add-on.
NB: You should consider that these add-ons are niche and likely haven't been touched in a while or are another unmaintained bit of the Kodi codebase (about 70% of Kodi features have no assigned maintainer). Whinging about how things do or don't work is rarely the best way of distracting a Team Kodi developer (an unpaid volunteer working in their spare time) to your cause.