The Legality of Forking
code.ipstenu.org
code.ipstenu.org
If he doesn't, then he neither understands his own position nor agrees with it.
Very confusing.
As for the company... They tried the money & collaboration method first. When it was rejected, they went another totally legal route.
We don't know why those devs left. Maybe it was money, maybe it was pride... Maybe they disagreed with the direction that was being taken, and changed companies so they could go in a better direction. Maybe they were bored. We don't know.
Separating "legal" and "ethical" is a problem with many people. Several years ago when I worked for state government there was an ethics controversy. The politician involved kept arguing his actions were legal, but, I think, missed the broader point of whether they were ethical. An ethics board of his peers—also elected officials—eventually "cleared" him while saying he acted inappropriately, so perhaps they too missed the difference.