Decades of innovation that have been invested, not to make a better product, but mostly on how to extract more and more money from their victims, I mean "customers".
I would like to own a printer again, but for printing something like once a month, I just can't financially justify spending several hundred bucks on a device that might, at the whim of the manufacturer, decide that the way I'm using it is not okay anymore, is probably designed to break after two years, requires me to sign up for a subscription service for ink, or whatever BS else the decision makers in this space come up with.
Buying cheap third party consumables is a hack. It is people taking advantage of the low prices (entry level printers are often sold at a loss), without paying for the overpriced consumables that is where the real profits are. Back then, manufacturers could absorb the loss, but now, with the printer market tanking, it is becoming harder and harder.
A company that decides to tolerate third party consumables is likely to attract customers who want to do exactly that, a significant loss. If they want to stay profitable, their printers will be more expensive, more than what casual users are ready to pay.
I don't know about laser printers but traditional manufacturers sometimes offer an alternative to expensive ink cartridges: ink tank printers. They are way more expensive than their equivalent cartridge-based printers, but ink is sold in bulk with no DRM (cheap). These, however, are only worthwhile if you print a lot.