They pulled the rug out on a lot of people and people tend to hold grudges. Community edition is peanuts compared to using an open source tool you _could have_ fixed your own bugs with by creating PRs or adding features with PRs. I used to be a huge hashicorp fanboy... _used to_.
Just to clarify, you can still access the code, submit PRs to add features, etc. The only difference is that during a fixed time period (4 years) you cannot use Nomad to compete with HashiCorp. If you want to do that, you can ask for a license.