A cracked LCD screen also makes the display unreadable. There are all sorts of ways for anything to fail, so calling out one failure method of one thing while ignoring similar failures for the device being compared comes across as very short sighted
The thing I hate about low cost LCD displays is that terrible motion blur when you have changing or scrolling text. It just screams cheap in my mind. 7 segment never had that problem.
Yes but a cracked LCD is much more obvious than a single LED segment burning out. Also usually physical damage is required to crack an LCD, where as LEDs can burn out (albeit rarely)