What is this relic delta i keep reading about?

Relic delta is just another cash grab that will basically force players into taking a majority of their characters to the highest relic level possible or risk losing GAC matches. Marvel strikeforce has this overpowered garbage and they figured it out that as soon as this overpowered crap rolled out thousands of players just threw their hands up and said screw this game we are done. What I wanna know is will $$CG$$ do something about GAC matchmaking or just continue with this 6 million GP account vs a 10 million GP account bull**bleep**.