"Re-normalize," as in "go back to the original definitions," from where they've strayed. I agree that the rules say any stick you find should count as an improvised club, and the DM may allow you to apply proficiency at their discretion. Instead of having sticks that use the game stats for a club, and clubs that use the game stats for a mace; it would make infinitely more sense to have a "stick" entry that covers random sticks you find, and then the "club" entry on the weapon chart can refer to actual clubs.