I agree that Brad will probably be like "Meh, the ending wasn't that bad, it's just not all that I hoped it would be." This will be almost as disappointing as the ending itself and will re-ignite the immense nerd rage I experience whenever someone tries to defend it as being good.
But no, I should give Brad more credit. Most people who genuinely like the ME series and have critical thinking skills understand that the ending to ME3 is awful. It's just not easy to sum up why, because there are so many things that go horribly wrong in the final moments of the game. There are some good videos on youtube that attempt to address this mess, however.