What's being discussed here though, isn't if you can potentially win or not, but rather how unbalanced and RNG like the whole thing is.

Fair chocobo preference: Yes, you can still win, but you are at a disadvantage. What decides if your chocobo is foul or fair? RNG.

Stars in chocobos: Yes, you can still win, even if your chocobo has 1 star in stamina, but you are at a disadvantage. What dedices the stars of your chocobos? RNG.

Skills in chocobos: Yes, you can still win, even if you have 2 trash skills, but you are at a disadvantage. What decides skills in chocobos? Mostly RNG unless you want to spend your entire life grinding MGP for lethe waters and your own breeding chocobos.

Choco Meteors and hero's tonic: Yes, you can win! If you get the hero's tonic and some npc casts meteor...but that's...well...pretty RNG like.

All these things become more relevant the higher the tier you are in and if you are matched with real players with half a brain.