I think that HyperDX is a bit different from tools like Mongo, Redis or Hashicorp in that we're a vertically integrated product from SDKs/UIs to ingestion pipeline and DBs, which is opposite kind of offering from done by the above companies (which has made them more vulnerable to the kind of rug pull you mentioned)
We're trying to be permissive with freedoms granted to the user of our code, while still maintaining governance over the project to make it sustainable.
We don't want to be source-available, as that's pretty much the opposite of what we want to accomplish (and is why we consciously did not pick a license such as BSL/SSPL/etc.)