Core XY didn't exist in consumer printers outside of Vorons that took hours to build. If all a new company did was take an obvious concept and make it accessible, then that just reflects poorly on the previous market leaders.
I have about 15,000 hours on my Bambu x1c, and it's been fantastic. Their customer service has been great, too; the couple of times that I've had service issues, the tech genuinely worked with me to solve the problem. They were a lot nicer about it than the times I had to contact prusa about my older i3. FWIW.