The argument OpenTofu and their lawyers are making is that they didn’t copy the “removed” statement, which is under the new BUSL license, they looked at the “moved” statement (licensed originally under MPL) and derived their own removed statement from that. Maybe true but I can’t help but wonder if there was any “parallel construction” involved.
Scrutinizing the fact that a PR links to an issue that links to an issue on another public repo, opened by what I understand to be a community member? I mean, who's going to stop them, right?
OpenTofu PR’d a feature in response to a request to do what Terraform had done under a different license. Hashicorp would be foolish not to look into it.
And here's where we agree. They totally should have had people look into it. Competent people, engineers. Would've saved them the current embarrassment.