Earlier quoted context omitted.
This point was made a lot in the article - Hackers didn't care about Open Source or the ideology. I tend to agree with that. First it's "don't use Unity", then it's "don't publish your Godot game for Windows", then it's "don't publish your Godot game in a form that requires proprietary graphics drivers", then it's "don't allow your game to run on Ubuntu", and so on. There's always another step to achieve ideological…
If it's easier to do it on Unity, the way to go is to improve Godot until it's even easier to use than Unity! :-) And the actual point of using something open like Godot is to raise kids who will internalize the fact that they could make not just their games , but their game engines as well - indeed, that nothing is 'magic' and anything can be thoroughly understood from first principles if one cares enough to do so.…
At what point do you say "enough!" and start writing the game not the tool? I say that for a kid starting out, that point is right at the start.
IF they get good at games coding, THEN by all means get them interested in Godot and helping to write a new games engine. By then they'll have the understanding to be able to contribute.