As I've mentioned above, I get all kinds of email about Ardour, some declaring their love for it, and some much more condemnatory than anything you've said here.
The point is that "trying to make music" isn't much of a description: people's workflows for "making music" vary dramatically. Not many years ago, more or less the only way to do this was to record yourself playing one or more instruments and/or singing. These days, there are many fundamentally different workflows, and countless minor variations of each one. If Bitwig works for you, it's no surprise that Ardour doesn't. There's a bunch of people for whom the opposite is true. You have to be prepared to try different tools and figure out which ones work for you.
Finally, ASIO and JACK don't really at the same level. JACK on Windows actually uses ASIO. The comparison to ASIO on Linux is ALSA, and sure, I'd agree that it's better than ASIO is most ways (though maybe not 100%).