They never really took off because, unlike PT, Logic's key commands are user defined.
The best thing to do is assign your own key commands in way that you'll remember them. And, don't add them randomly... when you find that you're doing certain procedures over and over again, assign it to a key command. And browse thru the available commands and try out some off the more esoteric ones.
The ones with the dots next to them are only available as key commands!