I suspect the small size of the dev team and the general nature of an OSS project means there aren’t swarms of people around volunteering to be community managers.
Small projects your sway with the project is directly proportional to your ability to submit pull requests. It’s just a sad fact that it’s easier to say “I wish we had feature X” vs. “Here is a pull request that implements feature X”.
At least with OSS you are getting what you paid for (nothing!), vs commercial companies where you pay for the software and they STILL ignore you.
If the developers’ wants and needs don’t intersect with a given user, there is no way forward for that user, community manager or not.