The problem is even with Prusas recent efforts to catch up with the Core One, it's expensive, and they still dont have a viable answer to the AMS. The MMU is still a hot mess, requires tinkering, isn't stable and overall just doesnt come close to an out of the box experience.
They still seem to be thinking the primary audience of 3d printers is people who tinker. It's not been that way for a long time. People just want to be able to unbox, plug it in and print. The second you add in the "oh just spend 5 hours tweaking this spaghetti mess of an MMU" you've lost them.
"hot mess" is not a fair assessment. The MMU2 was terribly unreliable, but the MMU3 is OK. It's surely more complicated to set up and requires more space than the AMS, but on the other hand, I think AMS concept is just plain bad. It's incredibly slow and produces a ton of plastic waste.
They still seem to be thinking the primary audience of 3d printers is people who tinker. It's not been that way for a long time. People just want to be able to unbox, plug it in and print. The second you add in the "oh just spend 5 hours tweaking this spaghetti mess of an MMU" you've lost them.