Removing a cheap tier is not a nice, though I still think that if the premium price is too much then you're better off on the free tier. And if that's really not enough you really were lucky all these years profiting from gitlabs growth hack.
The premium tier still provides a ridiculous amount of value for it's price.
For truly open source projects, they have a really generous program giving seats that normally cost 100 dollars a month away for free.