I understand your sentiment, but dimming highlights against a dark background is not the same as simply lowering brightness. Specifically, the former does not impact full field brightness and highlights against a bright background.
Dimming highlights against a dark background is necessary to work around the limited native contrast of the lcd panel, and IMO seems desirable. Specifically, blooming is a picture inaccuracy which is more noticeable (out of place) than muted highlights, which is a more benign picture inaccuracy instead.
Such dimming strategy should thus only be applied in specific scenes, and yields the optimal accurate PQ for LCDs in a dark room. In a bright room highlights should not be muted, since black level is less important. A well engineered LCD would be able to adjust the FALD algorithm based on the ambient light sensor. Instead, Sony LCDs allow you to select either approach manually. Samsung only provides FALD settings that mute highlights afaik.