That depends entirely on your definition of "behind".
The MK4 delivers pretty much the same quality at the same speed as the P1P.
Paying 30% more to get an open-source, fully modular, fully repairable and customizable product that's made sustainably with fair wages is not a huge markup.
I'd gladly pay 30% more to get an Android phone that's fully modular, open-source, repairable, upgradable and made in the EU.
That's... quite misleading? The MK4 with input shaping is limited by extrusion speed, not the motion system.
The printers are both pretty identical in performance today. And while CoreXY has significantly more headroom in case you'd like to upgrade the current bottlenecks, that's not an option with the Bambu printers anyway.
The MK4 delivers pretty much the same quality at the same speed as the P1P.
Paying 30% more to get an open-source, fully modular, fully repairable and customizable product that's made sustainably with fair wages is not a huge markup.
I'd gladly pay 30% more to get an Android phone that's fully modular, open-source, repairable, upgradable and made in the EU.