It didn’t originally (late joiners were the front of the queue), but based on player feedback it needed to.
The only thing you manipulated was the number other players saw in their current queue status. Leaving queue and then turning it back on when you know something is about to pop doesn’t ultimately change anything. It is only going to give the larva to the player who is currently a valid candidate that has been waiting the longest based on time of death. In other words, since you were the longest out of game, if it gave the larva to you, then in that moment you were the person that had been waiting the longest.
Secondly, predaliens are basically the only exception now - and an extremely rare occurrence - where there is ever a highly desired larva that someone would want. Nested larva vs unnested bursts was also in this situation, but that was addressed by requiring confirmation from the xeno candidate to take an unnested burst. Corrupt hive larva vs regular hive larva could also maybe be in this group, but I don’t think it is significant. If/when game ending xeno castes are added via pylons they also would be more desirable, but I don’t think players will know when these larva will pop so I don’t think there is really much reliable way to do the same in this situation.
Space Station 13 is a game where rounds can take hours to finish, and CM is no exception to this. It is entirely unreasonable from an accessibility standpoint to expect someone to be able to glue themself to the computer for the entire duration. The RNG larva selection would require this if you wanted the best chance of getting into the game (as in you must ensure you remain connected and not afk for an indefinite duration). If you are in the round there isn’t a whole lot you can do about this other than try to go somewhere safe for you to go AFK and hope when you come back you are still alive. In the case of waiting to be a burst as xeno because you died earlier, or just late joined and want to play xeno, the larva queue accommodates this by sorting merely by time of death rather than time entered queue. You’re free to disconnect (intentionally or unintentionally), play something else (either as a ghost role like facehugger or lesser drone - or something external to CM) without penalty to the queue. All the queue does is give larva to whoever is a valid candidate in that moment that has been dead the longest.
I assume you’re referring to Rework larva queue - #49 by Drulikar
Larva are in short supply so don’t squander your life that the queue prioritizes giving you. If the hive sucks at capturing marines, then that hive is likely to fall regardless.
So I think you’ve misinterpreted whats said. Otherwise find the quote/link it rather than paraphrase it since I’m sure it can be explained or elaborated.