Not a recruiter, but I imagine there are at least 3 reasons for your repo to be ignored or deprioritized in favor of typical interview:
- not everyone contributes to OSS
- it’s easy to fake
- it’s hard to assess within a short period of time
This it seems to be hard to standardize and streamline candidates validation based on their oss repos.
Also, afaik the goal of interview is to assess candidates thinking patterns, it’s hard to do quickly based on an arbitrary piece of code.