You're sitting back in a chair watching YouTube in the dark. Hit F for fullscreen. (OK, that was the easy level because of the key bump.) Now hit L to skip 10 seconds forward. Now hit < and > to adjust speed.
The backlighting is useful. But no, it's not for typing, for most people.
Also I don't understand what would be hard about your challenge. My hands automatically move to the home row, feel the key bumps and I instantly know where every key is. I never need to look at my keyboard. Not to mention having to move my eyes down from the displays would be annoying.
I mean people like backlight keyboards. So if it fits your use case great. Still makes sense to not include in a base model. I actually actively avoid keyboards with any lightning.
The fact that one in ten million people is annoyed by one of the softest lights ever invented by mankind is not a good reason to not include said feature in a product my guy.
The backlighting is useful. But no, it's not for typing, for most people.