HashiCorp announced Thursday that it is switching the license that governs the use of its open-source projects from the Mozilla Public License to the Business Source License (BSL), a license that does not meet the traditional definition of open source as described by the Open Source Initiative.
The biggest problem I see is that you can suddenly become non-compliant just because Hashicorp decides to release a new service (i.e.they start competing with you, rather than the other way). It can be a huge risk for companies.