LOL don't shoot the messenger. And thanks for the "sad" emoji.
Anyway, I think you missed part of the point. You cannot represent your PC physically in a game, but you can represent your character mentally and socially, and many DMs have the players represent what their PCs say, think, etc. instead of regulating it to the PC mental abilities.
For exampe, if a DM presents the PCs with a puzzle in the game, you have three options:
1) the
players, not the PCs, have to solve the puzzle.
2) the DM regulates the "puzzle challenge" to an ability/skill check, so players just roll.
3) a hybrid of 1 and 2. Perhaps the players get so far, and the DM asks for a check to give them a hint, so they can finish it.
You see this all the time. Well, I do anyway... YMMV.
What you don't see is this: A DM presents the PCs with a rough river to swim across. The DM takes the players outside to the nearby river, and makes them swim to see if their PCs can do it. If the players can't do it, their PCs can't.
So, mental and social interactions or challenges can be dealt with by the players and not by their PCs, even though a PC might have INT 20 while a player isn't as clever or knowledgable or whatever concerning the game world the PC is in.
Thus, it really isn't surprising to see mental abilities combined and physical ones expanded. The players
can represent the mental aspects of their characters in the game, but it is much harder if not impossible for the players to represent the physical aspects--so more physical options make some sense.
Again, don't shoot the messenger.