Yeah, you know the funny thing though...fans are always bashing the TDK suit right? Well when Rocksteady announced they were going to be bringing a Bale-suit into Arkham Knight, they polled people on Twitter whether it should be the Begins or TDK suit. And wouldn't you know it, the TDK suit ended up winning and it'll be DLC tomorrow.
Mind you, I like the Begins suit more too and promo images were less kind to the TDK, suit but I still felt like in the movies it looked good for the most part. Anyway point is, I really think a lot of what you see going on these days is partially insecurity. TDK Trilogy had IMMENSE popularity- and a Batman that fights, looks and sounds cooler is not enough in and of itself to win the GA over. Those movies were popular because they were excellent filmmaking, and the audience got very invested in that story. And now that story is over, so people can look back and nitpick a lot more.
As it's been pointed out many times, we've been seeing this exact cycle repeat itself since 1989, when it became cool for a generation of fans that grew up on the TV show to suddenly bash it. I've just accepted it, it's like tradition at this point. People will get so used to bashing the trilogy for the next few years that at some point somebody is going to go, "Wait a minute...these movies actually were really good, and crazy influential". And it'll swing back. It's the Bat-circle of life.