Earlier quoted context omitted.
They determined the guidelines of what constitutes being Open Source. Absolutely they should control the term. Just look at all of the companies out there with "source-available" licenses masquerading as Open Source. Neo4j themselves here uses "Open Source" in all of their marketing materials and should be just as guilty as this fork of false advertising.
1. “Open source” as a term predates the OSI 2. There are organizations other than OSI which have their own opinions on what they consider a “valid” open source license. 3. Some licenses are functionally open source but not approved by OSI because of their limited use. Furthermore, public domain works aren’t licensed at all. 4. OSI has no trademark on “open source”. OSI’s opinion is only as good as other people agree…
What other organizations have credible claims?
I’ve only heard of companies that have created non-open licenses and are trying to redefine the term (eg, open core, etc)