Yep I saw that story as well but it kind of makes my point: the first flight took until 2023 to happen. Thats not what I call “a lot” of activity.
You’re succeeding at favorably comparing the infrastructure challenges of hydrogen aviation to the infrastructure challenges of hydrogen for private cars, but that’s not really the bar to meet. All air infra is more consolidated than that of ground transport. The argument works for batteries just as easily.