I'm worried about longevity.
We live in a throwaway world these days with fancy gadgets that can't be repaired and soon break down.
I am a sucker for mechanical, LED backlit keyboards, but over the last ten years I have gone through no less than four brands and am on my fifth.
I started off with a Roccat... within weeks the LEDs started to flake out. two replacements made within the warranty period.
Then I got a Logitec... Again 2 LEDs stopped working. two replacements made.
I then got a steel series... a whole row of LEDs stopped working in the second year.
I the bought a Razer RGB keyboard... two swaps needed after multiple LEDs failed and several switches became unresponsive.
I'm now on a Corsair K70 SE mk 2 with PBT keycaps... The most expensive one I've bought. Bought in Feb... already one key's LED has no green sub element. RMA in progress...
If they can't even get LEDs to work reliably, I fear that adding to switch complexity by making them effectively analogue will only make the situation worse and create even less reliable keyboards.