Not because a keyboard doesn't sometimes need lit, but because they tend to just blast my face. And also because thinklights used to be a thing; a tiny LED in the top of the bezel pointin down at the keyboard. It did a wonderful job lighting the keyboard, and anything you might want to read by holding it in the same area, and didn't light up the room as much.
BUT, for whatever reason the replacement keyboard I got for my T14 the other day is dimmer than the previous model and almost has just the faintest bit of amber on the low setting. This reminds me of the thinklights of old and I like this a lot.
Did I mention some thinklights were amber? Lovely things.
Never forget what apple took from us in the name of sleek.