Thank you for your feedback @Sbyx,
there is no intention to provide a substitute to the blueprint exchange category here on Home Assistant forums, which I think it’s really an amazing place to receive feedback and share the progress of blueprint development. But the main benefit of having a GitHub repository is that this approach ensures all blueprints submitted there follow the same code and quality standards, receive proper testing and have extensive documentation. Moreover, it’s easier to track changes and contributions.
The project is still at the beginning so I’m not sure how it will look in the long run. But to make it short, the core idea is to provide users a place where they can easily find good blueprints, without searching in the whole blueprint exchange, which is seeing lots of new threads being opened every day.
Btw if you have any suggestions I’d be really happy to hear your voice. This is probably off topic here, so we can continue the discussion in the original thread. 
It would be really nice to receive a PR for this and your other blueprints, all of them would be a great addition to the collection. Also, if you’d like to try to maintain them inside the project’s GitHub repo, it would definitely be a good test to verify whether this approach really brings too much overhead to blueprint development. 
Thank you for your time and effort!