I had my own suspicions back when HashiCorp changed the Terraform licensing (and, yes, I’ve pretty much switched to OpenTofu on the one or two things I use that require infra nuke & pave), but I can’t say that IBM did a bad deal here - even though I don’t see that much value in the enterprise market (multi-cloud is very much a reality, but once you have Kubernetes a lot of the truly relevant plumbing vanishes from Terraform), it is a nice complement to RedHat’s Ansible and IBM’s own (almost unknown) orchestration software.
And, of course, it’s yet another data point for doomsayers harping on about Open Source licensing being a barrier to corporate growth…