It's super easy to understand why Alliance Raid does this. Its the only raid many *many* people unlock. And only because the game forces you to if you want to progress the story. So you have people that are 50 doing it for the first time and you have people that are omni-100 and don't want to be bothered doing anything else. Square-Enix created this problem. It is entirely their fault.

Solutions are easy 1) if you want to progress to StB you must complete the HW raids. Just like if you want to progress to HW, you must complete the ARR raids. Continue on until DT and all players in DT would have ARR, HW, StB, ShB, EW raids unlocked and you could queue into them as a possibility. 2) if Square-Enix thinks thats too scary, move CT to MSQ roulette because thats all it is at this point. 3) make the system so that the more times you do CT the less likely you are to get that raid. to the point where my max level char would not get CT for the 16th day in a row like today. Sqaure-Enix has created this cluster-mess and they should fix it.

ESPECIALLY @Jeeqbit when it is a REQUIRED roulette for the Aetherwell step of the DT relic. There are no alternatives - no options. They are FORCING endgame players into Alliance Roulette and we are ALL being funneled to CT where we get ~ 300 points out of 10,000 every time we run it. One solution to this problem would be to normalize across all alliance raids and give the same aetherwell points for all raids... I really dont feel like running alliance raid 34 times but that is the world Square-Enix has created.