I think he's referring to the use of "ctrl + 1-0" and "alt + 1-0" for radio commands.
Yes they have been the same for like 15 years.
Yes they can be changed in the .ini files, but most people won't know how to do that.
Making the radio commands full editible in the in-game UI would help alot of players I think.
Here's a good example:
Base under attack from EMP and 1 attacker. All hear the warning. 1 hotwire/tech is in the building and has building readily defended. In stead of spamming BUILDING NEEDS REPAIR/ DEFEND THE BUILDING ... a better response is (i think this is right...) ctrl + 9 which is I'M IN POSITION, which is sort of communicating.. "don't come here, I've got it under control".
But it can be kind of tricky to hit ctrl + 9 in almost any situation. lol