Likewise. This is precisely how it happens, and no amount of wishful thinking about how companies are going to insource the maintainance of some major FOSS package is going to change that. It simply will not happen that way, companies want to focus on their business and not on the vast amount of tooling that underpins basic functionality, they'll just use another supplier.

another supplier in this case is opentf.

Most decision makers aren't impacted nor concerned by Hashicorp's change of licence.

Again, that is not important for my argument. It only matters that some are concerned.

The only one are those that build stuff on top of terraform.

And you know what? It will always be worse building stuff on top of a proprietary technology managed by a company that can decide to discontinue it anytime. Look a all those companies that had build services using twitter api.