You are right with you assumptions about "1-2 ppl that being carries" that goes "up to 2-5" and then from my observations up to 10 in lets say 6/11M.
But we are in "Trial deserve loot too" thread, not in general thread about ML. So this is not about better players.
(btw those better players getting loot before trials/carries will not be considered unfair by majority of players and if this is the only issues - problem will not even exist.)
With ML those carries get loot before trials. All the time.
Current loot distribution systematically exploit trials in favor of those carries. That is not the only problem with the system, but again in general - this system enables nepotism.
As for "what happen now" - better players will more more incentives to move forward, towards better guilds. Isn't that good?