Re: Apex Legends Matchmaking
Short answer: Because a casual mode matchmaking that sorts the best players in their own lobbies would kill the game.
Long answer: Lets say hypothetically, that they would sort Diamond4-to-predator skilled player in their own casual lobbies. First of all; their queueing time would theoretically be approximately 21 times longer than for the rest because there are approx. 21 times more less-than-Diamond skilled players if we assume that ranked distribution roughly corresponds to the skill distribution of the player wise. This is just the theoretical waiting time; in realty am I fairly sure that these lobbies would never be complete since no one would want to wait this long and they would stop play entirely.
Second of all: if one such lobby would finally be completed and a match could start, the match would literally be as a high diamond/master ranked game and IMPOSSIBLE to play casually. You would need to play only with a premade team and play super tryhard. In a lobby where everyone is super good, you die in an instant if you do one stupid movement out of cover, its as simple as that.
Bottom line is that this would kill the game for the good players and a game that does this is doomed to fail.