Well, OpenTF hasn't given anyone anything there - the original open source licence Hashicorp put in place is why CNCF/LF can adopt the project. OpenTF is just an administrative middleman in that process.

My comment was about a previous commenter thinking it was amazing that other companies put FTEs in place for a few years to work on OpenTF. It's not amazing; their businesses were built on Hashicorp licencing Terraform as OSS. They've been given far, far more than a few FTEs' worth of effort, and their continued existence depends on OpenTF being actively developed. It's not a noble thing (unlike the original open sourcing); it's just business as usual.