The canonical story is described by Clay Christensen in the Innovator's Dilemma, where the new toy X is inferior to the mature Y along most dimensions. However, something changed in the world, and people are starting to value a dimension where the new toy X is 10x better than the mature Y along a single dimension. And that allows the new toy X to gain a foothold. I'm super curious as to how Godot managed it, even if it has been a long time in the making.
Of course, not all toys end up replacing the incumbent. But by dismissing everything as a toy, you're shutting off a line of inquiry to see how this process happens. If you're on HN, it's a good chance you're a programmer and by definition a creator. And if you're at all ever wanting to bring something new into the world, it'd behoove you to understand how new creations are accepted.