My 3 year old 4k flat TV costing me >2k is now unsupported by the manufacturer.
I don’t think it’s unfair. If you look at how they handled the Form 1/1+, I’m confident they will do their best to keep people going when they stop support. Besides that: if the market for this printer is still big enough, others will step in like what is happening with the F1/1+ now.