The article ended so abruptly I wondered if there was an issue with my browser rendering the content.
Putting my cynical hat on, if I were running Hashicorp, I would be happy to give cheap licenses to anyone who wants one right now. The danger for Hashicorp is that people might fork Terraform and create a competitor. Right now, with the PR around the license change, is the most likely time for a fork to happen. It would be better to kill off competitors one by one, by raising prices slowly.
Spacelift must know this is a danger, though. So it might be better to fork even if there's a cheap license on offer.
They've partnered with ALL of the largest industry giants in the cloud space. That must give them a pretty strong sense of security