I already know I am one of them. It doesn't really matter though. There is/was no reason to believe Martian Manhunter would be in the roster or DLC. :16Bit
Hes extremely popular and the logical thing is that popular people who get hinted are DLC.
But you're right. He was not guaranteed. Hes not guaranteed as much as Matter Eater Lad was not guaranteed.
But seriously, there is nothing we can do. This is already made and worked on. And, a lot of people are not happy, me included. If you watch their facebook its hilarious watching the guy to tell people to be respectful and to calm down.
What this will do, is hurt trust in the long term. There is not a chance in hell, I am assuming that popular good choices are being in NRS DLC.
They do more DLC after this? I ain't tagging along till its out. Same with MK10 or injustice 2 or MKvsDC2 or whatever they make.
Plus, some people have yet to buy a season pass. Will they after learning that a 7th batman character is in, a movie tie in, and an MK character? I doubt it. The choices are highly illogical and no one asked for them, except of course, a few people.