Oracle owns MySQL but not Terraform
If everyone acted like Oracle; there would be no mysql users. Which is the point being made.
Let's see;
If I giving away a product because I think it's for the betterment of mankind, and definitely not an attempt to rug-pull or anything like that: no, just for developer good will.
Then I am offered a free service, and I do not use it for fear that there could potentially be some rugpulling, despite having a reputation for that myself: and the project I'm considering having no reputation for that.
Then the pretense in which I "give away" my software, is morally dubious. I would never permit myself to be in the same situation as I need others to be in order for my product to be successful.
MySQL/Virtualbox/Java etc;
I have no sympathy for oracle or their products but I fail to see the hypocrisy here. I think oracle is pretty consistent in their position over the years.
Clearly Oracle are aware of the danger that they themselves ask people to ignore.
(There may be other reasons to do so but that's not here nor there)
You are also committing the classic mistake of anthropomorphizing Larry Ellison.